Technical Manual:
RedBrick Registration System
Cillian Sharkey, CASE3, 50716197
- Overview of project
- Background
- Users
- Features
- Constraints
- System architecture
- Clients
- Middle end
- Back end
- User data
- users
- usertypes
- students
- staff
- reserved
- Software and Hardware Boundaries
- References
Overview of project
Background
There are just over 1,800 accounts on the RedBrick UNIX system and so the
administration of user accounts forms a large part of the system
administrators' workload. As one of the system administrators for RedBrick
myself, I have first hand experience of the amount of work required in
administrating user accounts and dealing with account requests on an often
daily basis. In addition to this, each year at the clubs & societies day
the registration of new and renewal of existing users takes place. Hundreds
of users are processed on a small isolated network of computers. The goal of
this project is to reduce the workload of system administrators and ease the
administration and registration of users both on a daily basis and for the annual
clubs and societies day.
Users
The users of the system will be restricted to the system administrators
for day to day user administration as it requires root (superuser) access, however
for registration on clubs & societies day it is usual for other members of the
society committee to help out.
Features
The entire system is written in Python, whose website describes
it as:
"Python is an interpreted, interactive, object-oriented
programming language. It is often compared to Tcl, Perl, Scheme
or Java. Python combines remarkable power with very clear
syntax. It has modules, classes, exceptions, very high level
dynamic data types, and dynamic typing. The Python
implementation is portable: it runs on many brands of UNIX, on
Windows, DOS, OS/2, Mac, Amiga... "
Provides a flexible, automated and consistent (UNIX command
line) interface (useradm
) for performing both common
day-to-day and occassional "batch" user administration operations on
the actual accounts (home directories, mail spools, disk quotas etc.),
the UNIX /etc/passwd
"database" and the user database
ensuring that all are kept in sync. The following functions are
provided:
- adding new accounts,
- deleting existing accounts,
- renaming existing accounts,
- converting existing accounts "usertype",
- renewing existing accounts,
- reseting accounts with new random password (and emailing password
to user)
- reseting accounts with disabled Unix shells,
- retrieving account information for display,
- checking the availability of usernames for new accounts,
Batch account operations include:
- emailing renewal reminders to non-renewed accounts
- expiring non-renewed accounts (i.e. disabling login shell)
- deleting non-renewed accounts after a grace period
- checking for inconsistencies between the user database and the
UNIX
/etc/passwd
database
- interactive update of the user database from the latest copy of
the public DCU student database
Other information available:
- searching user and DCU databases,
- database and account statistics
The following is the output for the command usage help from
useradm
when given the '-h' option which lists all
the names of the functions the script performs.
Usage: useradm command [options]
Single user commands:
add Add new user
delete Delete user
renew Renew user
update Update user
rename Rename user
convert Change user to a different usertype
Single account commands:
resetpw Set new random password and mail it to user
resetsh Reset user's shell
disuser Disuser a user
reuser Re-user a user
Single user information commands:
show Show user details
freename Check if a username is free
Interactive batch commands:
search Search user and dcu databases
sync Synchronise accounts with userdb (for RRS)
sync_dcu_info Interactive update of userdb using dcu database info
Batch commands:
newyear Prepare database for start of new academic year
unpaid_warn Warn (mail) all non-renewed users
unpaid_disable Disable all normal non-renewed users
unpaid_delete Delete all grace non-renewed users
Batch information commands:
newbies_list List all paid newbies
renewals_list List all paid renewals (non-newbie)
freename_list List all usernames that are taken
unpaid_list List all non-renewed users
unpaid_list_normal List all normal non-renewed users
unpaid_list_reset List all normal non-renewed users with reset shells
unpaid_list_grace List all grace non-renewed users
Miscellaneous commands:
checkdb Check database for inconsistencies
stats Show database and account statistics
'useradm command -h' for more info on a command's options & usage.
Provides a web interface (rrs
) to offer a similar
set of single user administration operations for use on the clubs &
societies day. While not as fully featured or as flexible as
useradm
, the interface is designed primarily for speed and
efficiency.
To achieve this, user input fields are automatically focused on page
load (using Javascript) to save using the keyboard or mouse to select
the input box; input from barcode scanners or magnetic strip
readers (for use with DCU staff and student cards) is accepted which
considerably speeds up the process and eliminates the potential for
human error.
The setup is generally that of a small number of networked computers
that are isolated from the RedBrick servers so changes would be made to
a local (seperate) copy of the user database and at the end of the day
all of these changes (i.e. new, renewed, renamed, converted, etc.
accounts) must be detected and synchronised with the actual accounts
and UNIX /etc/passwd
database on the system. This needs to
be done in batch as hundreds of accounts are processed on clubs &
societies day. This is implemented as the sync command in
useradm
. Features which rrs
provides:
- adding new users,
- deleting existing users,
- renaming existing users,
- converting existing users "usertype",
- renewing existing users,
- retrieving user information for display,
- checking the availability of usernames for new users,
- searching user and DCU databases,
- database statistics,
- a detailed log of all actions performed,
- Prevent username conflicts with other namespaces on the system e.g.
email aliases, mailing lists, DNS entries for the redbrick.dcu.ie and
other domains the society host. Achieved through the use of the reserved table.
Constraints
- All accounts must have a name (or description) and an alternate
email address for contact purposes (and as such all UNIX accounts must
have a corresponding entry in the user database).
- Users may only have one account on the system (i.e. one student ID
per account).
- Member, staff and associate accounts should have a valid DCU
student/staff ID associated with them.
- Usernames are limited to what the underlying UNIX OS supports, i.e.
maximum length of 8 characters, small set of available characters (a-z,
0-9, '-', '_', '.'), etc.
System architecture
The system is 3 tier in nature:
Clients
There are two client applications:
- rrs: a CGI web interface (primarily for use on
the annual clubs & societies day to register new members and renew
existing members)
- useradm: a UNIX command line interface for
day-to-day user administration.
Additional maintenance scripts:
Middle end
There are two main modules and a number of supporting modules which the two
client applications (and any potential future applications) use. These are:
- rbuserdb: performs all database operations
- rbaccount: performs all local UNIX
account operations
- rberror: contains custom exception classes
(RBError, RBFatalError, RBWarningError) for our own types of errors
- rbuser: contains RBUser class for
representing a user
- rbopt: contains RBOpt class for storing
user options and sharing between the various modules
Note that the web interface does not make use of the rbaccount module however,
as it operates on the database only.
Back end
A PostgresSQL database contains the following tables:
- users - the current user table
- users<YEAR> - the user table(s) for previous years. These are
kept for reference and archival purposes only and are not actively used.
- usertypes - contains a list of accepted usertypes
- students - contains basic information on all
DCU students (id number, name, email, course, year).
- staff - contains basic information on most
DCU staff (id number, name, email).
- reserved - contains a list of additional
reserved names.
The traditional /etc/passwd
, /etc/shadow
and
/etc/group
files in addition to the filesystem store Unix account
information.
User data
The traditional UNIX /etc/passwd
database doesn't contain
enough information for user accounts for RedBrick's needs (nor does it support
complex queries that a database can) hence the need for a user database. Following
are descriptions of the various database tables:
Username
Unique UNIX username. Primary key, must be non-null and 8 characters maximum.
Usertype
Corresponds to both UNIX group and type of user. This references
the usertype foreign key in the usertypes table to
ensure it is valid.
Newbie
Boolean; true if user is a new user this academic year. Must be
non-null.
Name/Description
User's full name or a description for non-user accounts (e.g.
project/system accounts). Must be non-null.
Email
Alternate contact address (typically DCU email address). Must be non-null.
Student ID
DCU student (or staff) ID number, compulsory for member, staff and
associates optional for all other usertypes. Must be unique.
Years paid
Number of years paid, compulsory for member, staff and associates optional
for all other usertypes (only used by committe and guests though). Non-renewed
accounts (referred to as 'normal') will be 0 if they were renewed for the
previous year or -1 (referred to as 'grace') if they were not.
Updated by
Username of the administrator who last updated the database entry. Must be
non-null.
Updated at
Date & time of when the database entry was last updated. This is
updated automatically by a database trigger for all INSERT and UPDATE
operations on the table by setting it to the current time & date.
Created by
Username of the administrator who first created the account. This should be
set once at account creation time (INSERT). The default value for this is the
same as updated_by, so there's no need to explicitly set it.
Created at
Date & time of when the database entry was first created. This should
be set once at account creation time (INSERT). The default value for this is
the current time & date so there's no need to explicitly set it.
Birthday
Optional date, to be potentially used for birthday notifications, etc.
Only applies to real user accounts (i.e. member, staff, associat, committe,
guest).
Usertype
Name of usertype. As these correspond to real Unix groups, there is a limit
of maximum length 8 characters.
Description of usertypes:
system
System accounts, pseudo-user accounts etc. Default name: 'System Account',
default email<EMAIL_ADDRESS>reserved
Permanent reserved names (e.g. server hostnames, usernames that may cause
potential confusion or misuse e.g. a username of 'redbrick', 'admin' etc.). These
entries do NOT have corresponding Unix accounts (the system usertype is for that).
Default name: 'Reserved Name, default email<EMAIL_ADDRESS>founders
A founder of the society member. A rather closed group, admittedly.
member
Current students of DCU only. Email should be their DCU email address.
associat
Graduates, former DCU students/staff or people otherwise officially
associated with DCU (must have a DCU ID number).
staff
Current DCU staff members only. Email should be their DCU email address.
club / society
DCU Club/Society account. Name set to official name of club/society, email
preferably set to a contact address for the current secretary/chair of that
club/society.
dcu
General DCU body, organisation or role account (e.g. 'supres'). Name must
be full description of entity, email address should be a DCU one.
intersoc
Account for another networking society. Username set to abbreviation of
society name, name set to society name, email set to a contact address for the
current secretary/chair of the society.
projects
Account for a Redbrick/DCU/Academic/Course project. Username set to
abbreviation of project name, name set to full project name, email set to a
contact address for the project leader.
redbrick
Account for miscellaneous Redbrick activities (e.g. 'semnet', 'tutorial').
Name set to description of account. Email set to redbrick user in charge of it
if appropriate, otherwise the redbrick committee.
guest
Guest accounts. For accounts that don't fit into any of the above types.
These must be approved by the committee on a per-user basis.
This database is updated nightly from DCU's LDAP server (host: atlas.dcu.ie,
base DN: 'ou=Students, o=DCU', search filter: objectClass=person) by rebuild_userdb_students launched by
cron.
id
DCU Student ID (one of the values of 'cn'). Non-null unique integer.
name
Name (value of 'givenName' and 'sn' concatenated). Non-null string.
email
DCU email address. Non-null string.
course
DCU course (abbreviated version). Non-null string.
year
Year in DCU or 'N/A' if not available. Non-null string (characters are also
used sometimes, e.g: 'X' for exchange student, so can't use an integer
type).
This database is updated nightly from DCU's LDAP server (host: atlas.dcu.ie,
base DN: 'ou=Staff, o=DCU', search filter: objectClass=person) by rebuild_userdb_staff launched by
cron.
id
DCU Staff ID (one of the values of 'cn', or extracted from 'gecos').
Non-null unique integer.
name
Name (value of 'givenName' and 'sn' concatenated). Non-null string.
email
DCU email address. Non-null string.
This database is updated nightly from the various email alias files, Unix
group names and DCU entries for the redbrick domain and any other zones the
society host. Note that the entries in this table are not strictly reserved,
they can be ignored if necessary (e.g. creating a system user in the database
which already has the Unix group setup in advance, etc.). Also of note is that
these entries are not permanent, as the entire table is purged and rebuilt.
Permanent reserved entries belong in the users table as noted previously.
username
A reserved username. Primary key.
info
Information about the source/nature of this reserved username. Non-null
string.
Software and Hardware Boundaries
The project uses the OS native command line tools for performing all
UNIX /etc/passwd
operations and the majority of account
operations. The 3rd party utility setquota
is used for
the modification of disk quotas. DCU student and staff information is retrieved
from the publically accessible LDAP service on atlas.dcu.ie
.
References
Software
UNIX (Solaris) user administration tool manpages
$Id: tech-manual.html,v 1.1 2003/03/28 16:37:38 cns Exp $


K10: Install¶
If you are deploying the Kasten platform in your own Kubernetes cluster in AWS or Google (GKE), the below instructions will help.
Installation Overview
Prerequisites¶
- You need the Helm package manager
- Just like our Kanister charts, you need to add the Kasten Helm repository to your local setup
$ helm repo add kasten https://charts.kasten.io/
Installing on AWS¶
To install on AWS, you need to define two environment variables that specify your access key id and secret access key. After doing so, just run the following command to install K10, the Kasten platform.
$ helm install kasten/k10 --name=k10 --namespace=kasten-io \
--set k10_secrets.aws_access_key_id="${AWS_ACCESS_KEY_ID}" \
--set k10_secrets.aws_secret_access_key="${AWS_SECRET_ACCESS_KEY}"
In particular, the above AWS access keys should have the following policy permissions.
EC2 (EBS) Permissions¶
The following permissions are needed by Kasten to operate on EBS, AWS EC2's underlying block storage solution
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"ec2:AvailabilityZone",
"ec2:CopySnapshot",
"ec2:CreateSnapshot",
"ec2:CreateTags",
"ec2:CreateVolume",
"ec2:DeleteSnapshot",
"ec2:DeleteTags",
"ec2:DeleteVolume",
"ec2:DescribeSnapshotAttribute",
"ec2:ModifySnapshotAttribute",
"ec2:DescribeAvailabilityZones",
"ec2:DescribeSnapshots",
"ec2:DescribeTags",
"ec2:DescribeVolumeAttribute",
"ec2:DescribeVolumesModifications",
"ec2:DescribeVolumeStatus",
"ec2:DescribeVolumes",
"ec2:Encrypted",
"ec2:ParentSnapshot",
"ec2:Region",
"ec2:ResourceTag/*",
"ec2:VolumeIops",
"ec2:VolumeSize",
"ec2:VolumeType",
"aws:RequestTag/*",
"aws:TagKeys"
],
"Resource": [
"*"
]
}
]
}
Optional S3 Permissions¶
If you are going to migrate applications between different clusters, you will need an S3 bucket for it. The credentials used above should have the following permissions on the bucket.
Note
A future release will allow a completely different set of credentials to be used for accessing the S3 object store.
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"s3:DeleteObject",
"s3:GetObject",
"s3:ListBucket",
"s3:PutObject"
],
"Resource": [
"arn:aws:s3:::${BUCKET_NAME}",
"arn:aws:s3:::${BUCKET_NAME}/*"
]
}
]
}
Installing on GKE¶
A GCP Service Account (SA) automatically gets created with every GKE cluster. This SA can be accessed within the GKE cluster to perform actions on GCP resources and is the simplest way to run the Kasten platform. If the SA is correctly configured (see more below), just run the following command to install K10:
$ helm install kasten/k10 --name=k10 --namespace=kasten-io
Service Account Scope¶
By default, the default service account scope is sufficient for
K10. However, for cross-cluster application migration and K10 DR, we
also do need permissions to access Google Cloud Storage (GCS)
(https://www.googleapis.com/auth/devstorage.read_write
or,
alternatively, storage-full
can also be used as an alias). The
complete scope listing is as follows:
compute-rw,
storage-full,
cloud-platform,
https://www.googleapis.com/auth/trace.append,
https://www.googleapis.com/auth/service.management.readonly,
https://www.googleapis.com/auth/servicecontrol,
https://www.googleapis.com/auth/monitoring.write,
https://www.googleapis.com/auth/logging.write,
If the cluster was not originally created with the additional credential, it is technically possible to modify the scope following these instructions. However, given the need to restart instances, that is not recommended. As documented below, we recommend creating a separate service account with the correct permissions.
Alternatively, if a new cluster is being created, the modified scope
can be set at that time. For example, it can be passed to the
gcloud
command via the --scope
parameter.
Using a Separate Service Account¶
Creating a new Service Account¶
K10 requires a newly created service account to contain the following roles:
roles/compute.storageAdmin
roles/storage.admin
The following steps should be used to create the service account and add the required permissions:
myproject=$(gcloud config get-value core/project)
gcloud iam service-accounts create k10-test-sa --display-name "K10 Service Account"
k10saemail=$(gcloud iam service-accounts list --filter "k10-test-sa" --format="value(email)")
gcloud iam service-accounts keys create --iam-account=${k10saemail} k10-sa-key.json
gcloud projects add-iam-policy-binding ${myproject} --member serviceAccount:${k10saemail} --role roles/compute.storageAdmin
gcloud projects add-iam-policy-binding ${myproject} --member serviceAccount:${k10saemail} --role roles/storage.admin
Installing K10 with the new Service Account¶
For security reasons, helm
does not allow the use of a file
outside the chart folder. To therefore use the k10-sa-key.json
generated above, you need to fetch the chart, unpack it, and then
install with a pointer to the newly created credentials.
helm fetch kasten/k10 --devel --untar
cp k10-sa-key.json k10/
helm install k10/ --name=k10 --namespace=kasten-io --set k10_secrets.google_api_key_path=k10-sa-key.json
Kasten Dashboard Access¶
In order to access Kasten Dashboard, an ingress
controller needs to be deployed into the
Kubernetes cluster. The Kasten Helm chart will deploy the
nginx ingress
and configure it with the NodePort service. With the default
configuration, the Kasten Dashboard is secured and
can only be accessed via a user who is already authenticated using
kubectl
(see below).
If your cluster already has deployed an ingress controller, you can
disable the nginx ingress deployment by specifying the following
option to the helm
command:
--set nginx.enable=false
To configure nginx ingress to be exposed through the default
LoadBalacer, please use the following option with helm
:
--set nginx.controller.service.type=LoadBalacer
Accessing via kubectl
¶
Run the following command to have kubectl establish a proxy connection to the ingress controller service
kubectl proxy
The dashboard will be available at:
http://localhost:8001/api/v1/namespaces/kasten-io/services/k10-nginx-controller:http/proxy/
Accessing via a LoadBalacer¶
To access the dashboard via the LoadBalancer, you have to first find the LoadBalancer's public DNS/IP address:
kubectl --namespace kasten-io get services k10-nginx-controller \
-o jsonpath='{.status.loadBalancer.ingress[].hostname}'
The K10 dashboard will be available at the root of the DNS or IP address returned from the above command.
Note
Currently, directly viewing the dashboard via the LoadBalancer is only protected by Basic-Auth.


MURDER IN THE FIRST A film review by Ben Hoffman Copyright 1995 Ben Hoffman
I was asked by the publicist for MURDER IN THE FIRST to write a book review based on a copy of the novel by Dan Gordon she gave me a few weeks ago. This makes it difficult to now see the film and write a review of the movie with the book fresh in my mind. (The book review is in the following message.)
For one thing, the book is more exciting than the film. For a second thing, why was it necessary to change the fictional names the author, Gordon, had given the characters? Does everything have to be twisted around when making a movie from a book? Willie Moore (in the book) sounds better than Henry Young (Kevin Bacon). Henry Willard Davidson (Christian Slater), the young lawyer in the book, becomes Stamphill. Oh, well.
There have been many books on prisons and prison life but none so clearly describes the utter authoritarian brutality visited on anyone when a jailer, Mr. Glenn (Gary Oldman), wishes to punish. This film is based on a true story, an attempted escape of Alcatraz and the subsequent events that made present day Alcatraz a tourist attraction in San Francisco bay.
When Warden Humson asked Mr. Glenn why number 532 (the number was also changed!) was in solitary confinement for three years, the reply he got was that the records will show that no one has attempted an escape since Young received his punishment. "You let those animals think escape is possible you might as well stick in a revolving door. Is that what you want, Sir?"
Nevertheless, the warden decides Young has learned his lesson and he is released from solitary, half crazed. Gordon has described the darkness, in the cave-like one-room, the little peephole in the "door," the smell. Three years. In the film, it is too dark to see much of the "dungeon" as solitary was called.
In all the time Young was holed up, his mind was on learning who was the snitch who gave away the escape plan. It was the one thing that kept him alive. When, his first day out of the dungeon (as it was called) and on line in the mess hall, another convict whispers the name of the snitch. A few moments later, Young gets his revenge and once more is thrown under Mr. Glenn's authority.
Gordon details the new punishment Young must now endure. The story then switches to the young Public Defender and his efforts to get a fair trial for Young ... with Young not responding.
While Gary Oldman and Christian Slater are let loose to give forth with their histrionics, most of Kevin Bacon's work is in the dark ... as is most of the film.
Directed by Marc Rocco.
2.5 bytes 4 Bytes = Absolutely must see. 3 Bytes = Too good to be missed. 2 Bytes = So so. 1 Byte = Save your money.
Ben Hoffman
.
The review above was posted to the
rec.arts.movies.reviews newsgroup (de.rec.film.kritiken for German reviews).
The Internet Movie Database accepts no responsibility for the contents of the
review and has no editorial control. Unless stated otherwise, the copyright
belongs to the author.
Please direct comments/criticisms of the review to relevant newsgroups.
Broken URLs inthe reviews are the responsibility of the author.
The formatting of the review is likely to differ from the original due
to ASCII to HTML conversion.
Related links: index of all rec.arts.movies.reviews reviews


Hi, my name is Diana.
I am a senior studying Computer Science and Music at Wellesley College.
My interests include front end web development, UX/UI, functional programming, and music in technology.
I currently do research at the Wellesley HCI Lab.
Compositions


| Employee | Join Date | Projects | Rating | Social Activity | Performance | ||
|---|---|---|---|---|---|---|---|
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Rose Gill
|
May 23, 2018
|
05
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Last login
active
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67%
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Anne Arnold
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June 22, 2018
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04
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Last login
2 hours ago
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62%
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Carol Paige
|
May 12, 2018
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10
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Last login
Just Now
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83%
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Paul Terry
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June 20, 2018
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01
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Last login
12 minutes ago
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9%
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Megan Peters
|
June 15, 2018
|
06
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Last login
3 hours ago
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59%
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Constructor
new Team(teamData, reorganize)
Constructor for the Team class.
Parameters:
| Name | Type | Default | Description |
|---|---|---|---|
teamData |
Object | data about the team | |
reorganize |
boolean | true | tells the constructor whether it has to reorganize the team data or not. if false, teamData is just copied inside the new team. If true, data is organized so that attributes are moved directly inside the Team Object. this allows to copy data between two different Team objects. |
Properties:
| Name | Type | Description |
|---|---|---|
type |
String | alway "team" |
id |
String | team unique ID |
name |
String | team name |
titleId |
String | "stunlock-studios-battlerite" |
shardId |
String | id of the shard where the team data resides. As all the data is stored in the same datacenter right now, this always equals "global" |
stats |
Objct | - |
Methods
(static) get(id) → {Promise}
static method that fetches the data about a single team. You must call Battlerite.config and set the API key before calling this.
NOTE: At the moment the api does not provide a way to retrieve data about a single team,
so the method returns a promise that is always rejected.
Parameters:
| Name | Type | Description |
|---|---|---|
id |
String | id of the team to retrieve. |
Returns:
a promise which in case of success is fulfilled with a Battlerite.Team Object.
- Type
- Promise
(static) getList(params) → {Promise}
Static method that fetches a list of teams from the API. You must call Battlerite.config and set the API key before calling this.
Parameters:
| Name | Type | Description |
|---|---|---|
params |
TeamListOptions | Options used to select which teams are retrieved. |
Returns:
a promise which in case of success is fulfilled with an array of Battlerite.Team objects
- Type
- Promise


C++ is uber fast, relatively flexible, and has a large standard library. Even if that doesn’t make sense, just know that C++ is the most popular coding language used in competitive programming for very good reasons. So if we are going to teach you guys a coding language, why not teach the best of the best.
(Math) Accepts inputs, produces a unique output for each set of inputs.
(English) The ability to do something.
(Programming) A function is a part of code that just does something; it doesn’t necessarily need inputs or outputs but it can have both. These functions will contain algorithms. You don’t have to fully understand how to create functions yet!
An algorithm is a series of well defined steps that can be followed to produce a result. The following are some examples of algorithms
The Multiplication Algorithm
When you do long multiplication on paper you are actually using an algorithm. Consider 999 * 154.
To multiply these two numbers we first take the 4 and then multiply it with all the digits of 999, then we shift to the left and take the 5 and multiply it against all the digits of 999, and so on.
Problem A: Given a list of numbers A, find the range of A using an algorithm
Go through A once to find the maximum, then go through A again to find the minimum, and find the difference between the two.
Problem B: Given 2 lists of numbers A and B, determine whether an element in A and an element in B sum to some number k.
For each element a in A, for each element b in B, if a + b = k, it is possible. At the end of the process, if we have found no valid pairs, then it is not possible.
The explanations for each of these three problems above are in what’s called pseudo code: the explanation of an algorithm in English. It can then be translated into code.
You need two things to start writing C++ files. The first is a text editor, an application that allows you to write text to files.. Some commonly used ones are Atom, Vim, VSCode, Notepad++, and Gedit. It doesn’t matter what you use as long as you’re comfortable with it. Secondly, you need access to a terminal, which every computer has.
The code for your first file, which is typically Hello World (copy and paste this into your editor and save it):
#include <bits/stdc++.h> using namespace std; int main() { cout << “Hello World!\n”; }
The first line “includes” a large file with prewritten functions. Programmers are lazy! They don’t want to rewrite commonly used functions over and over again. The bits/stdc++.h file is included in the C++ compiler we suggest you to use.
This include file has a HUGE number of functions—the names of these functions could easily overlap with those from other libraries. Thus, another level of organization we use is namespaces. The second line identifies that we’re using a specific family of functions: in this case, functions from the standard library.
`int main()` is always the first function that’s called when the program is run. It is also the computer’s only point of entry—all other functions must be called from main. Thus, this is where we put the contents of our code.
The one line we have inside the main program is just an instruction to print “Hello World!”. We will talk more about printing in the future.
Note that this line is ended with a ';'. Notice as well that using namespace std is also ended with a ';'. ;'s are used to mark the end of a line in a c++ program, and almost every line you type will be ended with a ';', so better get used to them soon.
To run a program, we first need to download and use a compiler (typically g++, for C++ files) to translate the code you’ve written into a language that’s unreadable to us, but legible to a computer. This is put into a file called a.out. Running that file will execute the code. The terminal commands to execute code are g++ fileName.cpp and ./a.out
Where fileName is what you named your file. It is important that it is saved with the .cpp file extension. When that’s done, then viola! You’ve made your first C++ program.
If you are a bit confused on how to run look at the image below.


StringGadget3D()
语法
Result = StringGadget3D(#Gadget3D, x, y, Width, Height, Content$ [, Flags])概要
Creates a String gadget in the current GadgetList. This gadget accepts only one line of text. To get multi-line input, use the EditorGadget3D() function.
参数
#Gadget3D A number to identify the new 3D gadget. #PB_Any 可以用来自动生成这个编码. x, y, Width, Height The position and dimensions of the new gadget. Content$ The initial text content. Flags (可选) 可以是下列值的组合︰ #PB_String3D_Numeric : Only (positive) integer numbers are accepted. #PB_String3D_Password : Password mode, displaying only '*' instead of normal characters. #PB_String3D_ReadOnly : Read-only mode. No text can be entered.
返回值
Nonzero on success, zero otherwise. If #PB_Any was used as the #Gadget3D parameter then the return-value is the auto-generated gadget number on success.
备注
Later the content can be changed with SetGadgetText3D() and received with GetGadgetText3D().
The following events are supported through EventType3D():#PB_EventType3D_Change : The text has been modified by the user. #PB_EventType3D_Focus : The StringGadget got the focus. #PB_EventType3D_LostFocus : The StringGadget lost the focus.To add a 'mini help' to this gadget, use GadgetToolTip3D().
已支持操作系统
所有


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Bio
Megan grew up in Fairview Park, Ohio where she experienced a John Hughes-ian upbringing. After college she lived in San Francisco for a few years before settling happily in Seattle.
Work Experience
- Library Page at the Fairview Park branch of the Cuyahoga County Public Library, Fairview Park, OH
- Costume construction with the Santa Fe Opera, Santa Fe, NM
- Founder, Cleveland Shakespeare Festival, Cleveland, OH
- Front-end Developer with FutureNext Web Design, Cleveland, OH (No longer in operation.)
- Front-end Developer at OldNavy.com, San Francisco, CA
- Founder/publisher of Not Martha since 2001
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- I find four-leaf clovers easily.
- I have worked as an assitant brewer in a brewery.
- I have published several knitting patterns.
- I sunburn easily but my favorite travel destination is Joshua Tree National Park.
- I enjoy GPS location games like Ingress.
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- I have stood two feet away from Tim Gunn.
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## Salty Splatoon Getting Strong with data.
The Concept
## OpenPowerlifting None of this could have happened without [OpenPowerLifting](http://www.openpowerlifting.org/). - Two guys - Collecting data by hand - Getting fellow meatheads to send records and coverting them to csv They're angels.
## The Data - Over 7,000 powerlifting meets - Over 123,000 athletes - Over 253,000 lifts
## The data begs the question ### How strong are these people? (How much stronger than me?)
## The Tech Stack - Postgres Server Running on Amazon - Flask server - Deployment from GitHub master Branch to Heroku
The Features
### Search - Search through Athletes, Lifts, and Meets - Can search on athlete name, lift size, age, and bodyweight - Can search meets based on country
### Track lift Progress - Record user's lifts over time - Chart progress
### Visualizations - Display trends in the data using random samples from the database. - Sampled randomly from 50 athletes in the database
What multiple of your Bodyweight can you bench?
These people Deadlift a lot
And Don't Forget about the total lifts
(Some people's total lift's are over 1 ton)
Flask Models
- Flask SqlAlchemy provides an ORM to Postgres - So instead of writing raw sql into psycopg2 we can use object oriented principles we're used to.
### Psycopg2 driver (ugly) ```python # Connect to an existing database >>> conn = psycopg2.connect("dbname=test user=postgres") # Open a cursor to perform database operations >>> cur = conn.cursor() # Execute a command: this creates a new table >>> cur.execute("CREATE TABLE test (id serial PRIMARY KEY, num integer, data varchar);") ```
### Flask-Sqlalchemy (Art) ```python total = float(deadlift) + float(squat) + float(bench) athlete_lifts = Athlete_lifts.query.order_by(desc(Athlete_lifts.total_kg)).all() lifts = [float(lift.total_kg) for lift in athlete_lifts] ```
## K. Sounds good. Where's the app? Rude. It's right [here](http://howtoughareyou.herokuapp.com/).


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ServicesMental HealthMedicalCorrections LinksNationally, PHS contracts with thirty-four (34) correctional systems composed of 123 facilities having a combined average daily inmate population of almost 54,000 inmates. Our company operates in fifteen states, including California, Delaware, Florida, Georgia, Indiana, Kansas, Maine, Maryland, New York, New Jersey, North Carolina, Oregon, Pennsylvania, South Carolina and Tennessee. We employ over 1,900 full time equivalent employees with an annualized payroll of approximately $50 million. PHS strictly adheres to the Standards for Health Care Services in Prisons (1996 Edition) developed by the American Medical Association, and adopted by the National Commission on Correctional Health Care (NCCHC). We have the unique distinction of having achieved 74 awards of accreditation. While we tailor all of our managed care programs to the needs of our clients, most programs include the provision of all on and off-site medical, dental and psychiatric care; utilization management and continuous quality improvement programs, staff training for both healthcare and corrections staff; inmate educational programs, chronic care clinics; infection control and waste management, as well as other medically-related services requested by our clients. Top of PageMental Health ServicesPHS has the capability to deliver an extremely effective program of ambulatory and inpatient mental health services to adult and juvenile offenders in both prison and jail settings. In addition, we provide a wide-range of substance abuse services which includes therapeutic community treatment programs. A brief listing of our behavioral health services includes:
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Top of PageHome | Company Overview | Job Postings | Locations | Contact Us Send mail to<EMAIL_ADDRESS>with questions or comments about this web site.
|


recognizer_arcface module¶
-
class
recognizer_arcface.
FaceRecognizerArcFace
¶ Bases:
recognizers.recognizer_base.FaceRecognizer
FaceRecognizerArcFace impelements FaceReconizer and perform the embedding process using arcface model
-
prefix
¶ prefix path to arcface model
- Type
string
-
ctx
¶ the context of cpu/gpu usage set to mx.gpu() to use gpu and mx.cpu() is the default
- Type
int
-
epoch
¶ the number of loaded model epoch default 0000 used in traing can be ignored
- Type
number
-
image_size
¶ the size of the input image best is default which is [112 112]
- Type
list
-
model
¶ the arcface model
- Type
mx model
-
isloaded
¶ True if the model is loaded
- Type
boolean
-
layer
¶ the name of the layer to use as feature vector default is ‘fc1’ which is the fist connected layer
- Type
string
-
NAME
= 'recognizer arcface'¶
-
clean
()¶ clean the loaded model
-
configure
(prefix, epoch, layer, image_size, ctx=gpu(0))¶ set the configuration of arcface model
- Parameters
prefix (string) – prefix path to arcface model
ctx (int) – the context of cpu/gpu usage set to mx.gpu() to use gpu and mx.gpu() is the default
epoch (number) – the number of loaded model epoch default 0000 used in traing can be ignored
image_size (list) – the size of the input image best is default which is [112 112]
layer (string) – the name of the layer to use as feature vector default is ‘fc1’ which is the fist connected layer
-
extract_features
(aligned, clean=True)¶ embeds face image into vector of 512 value that represent the face using the arface model
- Args :
aligned (list numpy array) : the input aligned face image or images of shape (n,3,160,160) clean (boolean) : if true it clean the loaded model
- Returns :
parsed feature vector of shape (n,512)
-
load
()¶ load the wights of arcface model to prepare for use it also initialize the sess attribute
- Returns
True if the model was loaded successfully
-
name
()¶
-
parse_input
(images)¶ helper function to parse input of the recognizer to fit in the pipline
- Args:
images (list) : the unparesed input of images of faces
- Returns
ret (numpy array): the pared input images of shape (n,3,size,size)
-
parse_output
(emb)¶ helper function to parse ouput of the recognizer to fit in the pipline - can be ignored
-


Automation in the Cytoscape Ecosystem
Dexter Pratt, Sophie Liu, John "Scooter" Morris and Alex Pico
UCSD and UCSF
12 July 2020
Please proceed to the next slides for important requirements and
installation instructions.
Requirements and Installation Instructions
You should have the most recent version of Cytoscape downloaded and
successfully installed. You can download the appropriate installer
here.
Here are the directions for installing the environments and
libraries for the tutorial content:
For the HTML/JavaScript content, you will require an up-to-date web
browser, such as Chrome, Firefox, or Edge.
Overview
The tutorial consists of four Step-by-Step code examples.
The code examples are coordinated and demonstrate similar workflow
steps.
-
Part 1: Demonstration of the python workflow.
-
You can follow along in the Jupyter notebook as we present or
in the R and Web versions.
- Part 2: Questions
-
Part 3: Demonstration of R- and Web-specific examples
- Part 4: Try it on your own, ask more questions.
Goals and Motivations
By the end of this workshop you should be able to:
-
Control the Cytoscape desktop application from scripts and web
applications in order to:
- Get networks from NDEx
- Apply layouts and visual styles
- Create networks from tabular data
- Add tabular data to network
- Programmatically access public networks from NDEx
- Load data via scripts or via the Cytoscape desktop
- Store and share resulting networks with NDEx
Introductions
Dexter Pratt, UCSD
- Director of Software Development, Ideker lab, UCSD
- Started the NDEx Project
Sophie Liu, UCSD
-
Software Developer, Ideker lab, UCSD
Introductions
Chris Churas, UCSD
- Senior Software Developer, Ideker lab, UCSD
David Otasek, UCSD
-
Software Consultant, Ideker lab, UCSD
Introductions
John "Scooter" Morris, UCSF
-
Executive director, Resource for Biocomputing, Visualization, and
Informatics
- Roving Engineer, National Resource for Network Biology
- Cytoscape team since 2006
- Author of over a dozen Cytoscape apps
Introductions
Alex Pico, Gladstone Institutes
- Associate director, Bioinformatics Core
- Executive director, National Resource for Network Biology
- Cytoscape team since 2006
- Author of a handful of Cytoscape apps and RCy3
Automating Cytoscape via CyREST
| Task |
Python |
R |
Web |
| Open the NDEx network in Cytoscape |
✓ |
✓ |
✓ |
| Apply a visual style |
✓ |
✓ |
✓ |
| Apply a layout |
✓ |
✓ |
✓ |
| Save the network to NDEx |
✓ |
✓ |
✓ |
| Load a PPI Network from a File |
✓ |
✓ |
|
| Load Expression Data from a File |
✓ |
✓ |
|
Working Directly with Networks
| Task |
Python |
R |
Web |
| Get a Summary of an NDEx Network |
✓ |
|
✓ |
| Retrieve a Network from NDEX |
✓ |
✓ |
✓ |
| Display the network on a web page |
|
|
✓ |
| Query NDEx to Find Networks |
|
✓ |
|
| Load a PPI Network from a File |
✓ |
✓ |
|
| Load Expression Data from a File |
✓ |
✓ |
|
What is NDEx?
- Find networks to use in applications.
- Store networks in your private account.
- Share your networks - "DropBox for networks".
- Disseminate your networks.
-
Publish your networks as computable, actionable data.
- Work with your networks in Cytoscape
- Integrate networks with your applications.
Cytoscape Ecosystem Components
- Cytoscape Desktop (Java)
-
Cytoscape Automation via CyREST
-
From R: RCy3
-
From Python Py4Cytoscape
- Cytoscape Automation via CyCommands
-
CyBrowser: a web browser within Cytoscape that supports CyCommands
- App Store: the cloud repository where Apps are published.
-
NDEx: store, share, and publish networks
-
CX: the JSON Cytoscape network exchange format
-
cytoscape.js: the JavaScript library for interactively viewing
and using networks in web applications.
- Cloud apps and services


Dark clouds as Bolewura insists Damba will be celebrated
Chief Abdulai Issahaku Kant, embattled chief of Bole, has insisted that the people of Bole will celebrate the Damba festival even though the King of the Gonjaland, Yagbonwura Tuntumba Bore Essa I, has placed a ban on the celebration.
“If there should be any ban, then it must come from the court and not from the Yagbonwura’s palace,” he said.
According to the embattled chief, some crooks at the palace of the Yagbonwura were behind the ban on the Damba festival in the Bole township.
“The ban came to us as a surprise and we believe that this ban was masterminded by crooks who have access to Yagbonwura’s letter heads and stamps,” he said.
He stated that for the past one year, the Yagbonwura has not made any public appearance let alone public statements.
He indicated that the Bole township have witnessed total peace in the area, adding that various festivals have been celebrated peacefully.
Chief Kant said he was lawfully and legitimately enskinned as the Bole chief by the traditional authorities after he won the case at the Northern Regional House of Chiefs.
The King and president of the Gonja Traditional Council and president of the Northern Regional House of Chiefs, Yagbonwura Tuntumba Bore Essa I, accordingly in consultation with the elders of the Gonja kingdom, placed a ban on the celebration of Damba festival in the Bole Traditional Area.
“I, Yagbonwura and the council of elders therefore expect the law abiding people of the Bole Traditional Area to comply with the decision in the interest of peace,” the statement read.
He entreated the Savannah Regional Minister and members of REGSEC to take pragmatic measures with immediate effect to stop any Damba festival celebration in the Bole Traditional Area.
In June, this year, Chieftaincy clashes erupted during the celebration of Eid-ul-fitr prayers in the Bole district between Chief Abdulai Issahaku and Chief Abubakari Abutu factions.
Two houses and a pick-up of Chief Abutu Bukari were burnt as a result of the clashes.


uBit.messageBus¶
Overview¶
The micro:bit has an eventing model that can notify user code when specific things happen on the micro:bit.
For example, the MicroBitAccelerometer
will raise events to indicate that the
micro:bit has be been shaken, or is in freefall. MicroBitButton
will send events on a range of button up, down, click and hold events.
Programmers are also free (in fact, encouraged!) to send their own events whenever they feel it would be useful.
Registering an event handler¶
The MicroBitMessageBus
records which events your program is interested in, and delivers those MicroBitEvent
s to your program as they occur
through a defined event handler.
This is acheived through the MicroBitMessageBus
listen
function. This lets you attach a callback
to a function when a specified event (or events) occur.
You can also control the queuing and threading model used for your callback function on a per event handler basis.
This may sound complex at first, but it is actually very simple. For example, to find out when button A is clicked, write some code like this:
#include "MicroBit.h"
MicroBit uBit;
void onButtonA(MicroBitEvent)
{
uBit.display.print("A");
}
int main()
{
uBit.init();
uBit.messageBus.listen(MICROBIT_ID_BUTTON_A, MICROBIT_BUTTON_EVT_CLICK, onButtonA);
// We don't want to drop out of main!
while(1)
uBit.sleep(100);
}
Now, whenever the MICROBIT_BUTTON_EVT_CLICK
event is raise by MICROBIT_ID_BUTTON_A
, your code inside function onButtonA
will be automatically run.
You can call listen as many times as you want to attached functions to each of the events that are useful for your program.
Wildcard Events¶
Sometimes though, you want to capture all events generated by some component. For example, you might want to know when any changes in a button has happened.
In this case, there is a special event value called MICROBIT_EVT_ANY
. If you call listen with this value, then ALL events from the given source component will be delivered to your function.
You can find out which ones by looking at the MicroBitEvent
delivered to your function - it contains the source and value variable of the event.
For example, you could write a program like this:
#include "MicroBit.h"
MicroBit uBit;
void onButtonA(MicroBitEvent e)
{
if (e.value == MICROBIT_BUTTON_EVT_CLICK)
uBit.display.scroll("CLICK");
if (e.value == MICROBIT_BUTTON_EVT_DOWN)
uBit.display.scroll("DOWN");
}
int main()
{
uBit.init();
uBit.messageBus.listen(MICROBIT_ID_BUTTON_A, MICROBIT_EVT_ANY, onButtonA);
// We don't want to drop out of main!
while(1)
uBit.sleep(100);
}
If you REALLY want even more events, there is also a MICROBIT_ID_ANY
source, that allows you to attach a function to event generated from any component.
Use this sparingly though, as this could be quite a lot of events!
The following code would attach the onEvent
function to receive all the events from the whole runtime:
#include "MicroBit.h"
MicroBit uBit;
void onEvent(MicroBitEvent)
{
uBit.display.scroll("SOMETHING HAPPENED!");
}
int main()
{
uBit.init();
uBit.messageBus.listen(MICROBIT_ID_ANY, MICROBIT_EVT_ANY, onEvent);
// We don't want to drop out of main!
while(1)
uBit.sleep(100);
}
Defining a Threading Mode¶
Whenever you register a listener, you may choose the threading mode used with that handler. Every event handler can have its own threading mode, that defines when your handler will be executed, and how it will react to receiving multiple events.
There are four permissible modes for event handlers. These are:
| Threading mode | Brief Description |
|---|---|
| MESSAGE_BUS_LISTENER_IMMEDIATE | Handler is called directly from the code raising the event. Event handler is not permitted to block. |
| MESSAGE_BUS_LISTENER_DROP_IF_BUSY | Handler is executed through its own fiber. If another event arrives whilst the previous event is still being processed, the new event will be silently dropped. |
| MESSAGE_BUS_LISTENER_QUEUE_IF_BUSY | Handler is executed though its own fiber. If another event arrives, it is queued, and the event handler will immediately be called again once processing is complete. (default) |
| MESSAGE_BUS_LISTENER_REENTRANT | Every event is executed in its own fiber. if another event arrives, it is handled concurrently in its own fiber. |
These various modes provide great flexibility in how the runtime can be used to support higher level languages and applications. For example, MESSAGE_BUS_LISTENER_IMMEDIATE
is ideal for very simple, lightweight handlers, as this will provide very timely response to events with a low processing overhead. However, it is easy to cause side effects on other parts of the code if it does not return promptly.
MESSAGE_BUS_LISTENER_DROP_IF_BUSY
provide semantics identical to the Scratch programming language, and can be used to build easy to understand, asynchronous environments.
MESSAGE_BUS_LISTENER_QUEUE_IF_BUSY
provides similar semantics, but with tolerance to avoiding loss of high frequency events.
MESSAGE_BUS_LISTENER_REENTRANT
provides guaranteed causal ordering and improved concurrency, but at the cost of additional complexity and RAM.
You can define the threading mode you want to use on a per event handler basis as an optional final parameter to the listen function:
#include "MicroBit.h"
MicroBit uBit;
bool pressed = false;
void onButtonA(MicroBitEvent)
{
pressed = true;
}
int main()
{
uBit.init();
uBit.messageBus.listen(MICROBIT_ID_BUTTON_A, MICROBIT_BUTTON_EVT_CLICK, onButtonA, MESSAGE_BUS_LISTENER_IMMEDIATE);
// We don't want to drop out of main!
while(1)
{
if(pressed)
uBit.display.scroll("Pressed!");
uBit.sleep(100);
}
}
C++ Event Handlers¶
It is also possible to write event handlers as C++ member functions. If you don't know what this means, then don't worry, as that also means you won't need it. :-)
For those programmers who do like to write C++, you can use a variation of the listen
function to register your member function event handler.
This takes the same form as the examples above, but with an additional parameter to specify the object to call the method on. You are also required to specify your event handler using legal C++ syntax.
For example, you can write code like this to register an event handler in your own class:
MyCoolObject::onButtonPressed(MicroBitEvent e)
{
uBit.display.print("A");
}
MyCoolObject::MyCoolObject()
{
uBit.messageBus.listen(MICROBIT_ID_BUTTON_A, MICROBIT_BUTTON_EVT_CLICK, this, &MyCoolObject::onButtonPressed);
}
Again, it is also possible to a threading mode as an optional final parameter:
MyCoolObject::onButtonPressed(MicroBitEvent e)
{
uBit.display.print("A");
}
MyCoolObject::MyCoolObject()
{
uBit.messageBus.listen(MICROBIT_ID_BUTTON_A, MICROBIT_BUTTON_EVT_CLICK, this, &MyCoolObject::onButtonPressed, MESSAGE_BUS_LISTENER_IMMEDIATE);
}
Removing Event Handlers¶
Event handlers can be dynamically removed from the message bus as well as added. To do this, use the ignore
function. This takes precisely the same parameters as the
listen function, except that the threading mode argument is never used.
For example, to remove the event handlers shown above:
uBit.messageBus.ignore(MICROBIT_ID_BUTTON_A, MICROBIT_BUTTON_EVT_CLICK, onButtonA);
uBit.messageBus.ignore(MICROBIT_ID_BUTTON_A, MICROBIT_BUTTON_EVT_CLICK, this, &MyCoolObject::onButtonPressed);
Message Bus ID¶
| Constant | Value |
|---|---|
| MICROBIT_ID_MESSAGE_BUS_LISTENER | 1021 |
The message bus will send a MICROBIT_ID_MESSAGE_BUS_LISTENER
event whenever a new listener is added to the message bus.
This event allows other parts of the system to detect when interactions are taking place with a component. This is primarily used as a power management mechanism - allowing on demand activation of hardware when necessary.
Message Bus Events¶
| Constant | Value |
|---|---|
| Message Bus ID of listener | 1-65535 |
API¶
Constructor¶
MicroBitMessageBus()¶
Description¶
Default constructor.
Adds itself as a fiber component, and also configures itself to be the default EventModel if defaultEventBus is NULL.
send¶
int send( MicroBitEvent evt)¶
Description¶
Queues the given event to be sent to all registered recipients.
Parameters¶
MicroBitEventevt - The event to send.
Example¶
MicroBitMessageBus bus;
// Creates and sends the MicroBitEvent using bus.
MicrobitEvent evt(MICROBIT_ID_BUTTON_A, MICROBIT_BUTTON_EVT_CLICK);
// Creates the MicrobitEvent, but delays the sending of that event.
MicrobitEvent evt1(MICROBIT_ID_BUTTON_A, MICROBIT_BUTTON_EVT_CLICK, CREATE_ONLY);
bus.send(evt1);
// This has the same effect!
evt1.fire()
process¶
int process( MicroBitEvent & evt)¶
Description¶
Internal function, used to deliver the given event to all relevant recipients. Normally, this is called once an event has been removed from the event queue.
Parameters¶
MicroBitEvent &evt - The event to send.
Returns¶
1 if all matching listeners were processed, 0 if further processing is required.
Note
It is recommended that all external code uses the send() function instead of this function, or the constructors provided by MicrobitEvent.
int process( MicroBitEvent & evt, bool urgent)¶
Description¶
Internal function, used to deliver the given event to all relevant recipients. Normally, this is called once an event has been removed from the event queue.
Parameters¶
MicroBitEvent &evt - The event to send.boolurgent - The type of listeners to process (optional). If set to true, only listeners defined as urgent and non-blocking will be processed otherwise, all other (standard) listeners will be processed. Defaults to false.
Returns¶
1 if all matching listeners were processed, 0 if further processing is required.
Note
It is recommended that all external code uses the send() function instead of this function, or the constructors provided by MicrobitEvent.
elementAt¶
MicroBitListener elementAt( int n)¶
Description¶
Returns the microBitListener with the given position in our list.
Parameters¶
intn - The position in the list to return.
Returns¶
the MicroBitListener at postion n in the list, or NULL if the position is invalid.
add¶
int add( MicroBitListener * newListener)¶
Description¶
Add the given MicroBitListener to the list of event handlers, unconditionally.
Parameters¶
MicroBitListener *newListener
Returns¶
MICROBIT_OK if the listener is valid, MICROBIT_INVALID_PARAMETER otherwise.
remove¶
int remove( MicroBitListener * newListener)¶
Description¶
Remove the given MicroBitListener from the list of event handlers.
Parameters¶
MicroBitListener *newListener
Returns¶
MICROBIT_OK if the listener is valid, MICROBIT_INVALID_PARAMETER otherwise.


Devesh Patel
Gregorc Thinking Style
What style am I
June 25, 2015
Having taken the test, my results were Concrete Sequential: 12, Abstract Sequential: 44, Abstract Random: 44, Concrete Random: 20.
Concrete and Abstract refer to perceptual qualities. Concrete is more grounded and perceives through the 5 senses and sees the world for what it is. Abstract is more in tune with imaginative, intutive, and conceptualization.Sequential and Random refer to ordering abiilities for organizing information. Sequential is indicative of organizing information in a linear, logical fashion. People who are sequential are often planners Random, on the other hand, chunks information in no particular order. This quality often indicates impulsivity and unplanned.
Everyone is a mix of these to some degree but usually have a preference. So for me I am very high on the abstract perceptually and less concrete. This does not surprise me as I tend to think of the unseen more than the seeen.
From reviewing the information, I neeed to improve on being more concrete and sequential. I believe taking notes, being diligent trying to learn things in a linear style, and having more structure would help. In phase 0, this has been my biggest struggle. Trying to learn the material in an orderly fashion and retain it without missing chunks of information. I also need to work on having more of a growth mind-set and take failures as a chance to learn more. I should attempt what I don't know to learn more and steer away from a fixed-mindset.


dst_download
download data sets from Statistics Denmark
dst_information
get information about Statistics Denmark's data sets
dst_subjects
Retrieve subjects from Statistics Denmark
dst_tables
retrieve tables from Statistics Denmark
dst_variable_values
get tibble with variable values
dst_variables
get data set variables


Computer science professional with a Bachelor of Science focused in Computer Science from University of Colorado Boulder. Skilled in Go, Python, C++, Java, and Agile Methodologies. Professional experience includes working as a software Engineer for T-Mobile, a Software Development Engineering Internship with Travelport, and work as a part time software developer for Createch.
Some of my interests include climbing mountains, skiing, and travel.
Pyramid Peak, a 14er in Aspen Colorado. Here is a list of 14ers I have done.
Ice climbing in Ouray, Colorardo
The summit of El Pico de Orizaba, at 18,491ft or 5636m it is the third tallest mountain in North America. Here is a video of the adventure.
Skiing at Arapahoe Basin
Pisa, Italy.


Chirag Ahuja
Email<EMAIL_ADDRESS>Data Scientist/AI Engineer
Data Analysis, Machine Learning, Deep Learning, Computer Vision
A data scientist experienced in Banking, eCommerce, Human Resource, LMS and Digital Marketing and passionate about Artificial Intelligence and its applications like
Competency Synopsis
Data Analytics & Artificial Intelligence
Machine Learning: Supervised, Unsupervised & Basics of Reinforcement Using (R, Scikit Learn, Matlab, Mllib, Mahout, H2O and Azure ML).
Deep Learning: Tensorflow, Theaono, Keras
Text Processing: NLTK, Gensim, StanFord NLP Suite, GATE
Image Processing: OpenCV, HPI, Scikit Image
Audio Processing: PyAudio, LibROSA
Data Warehousing/Architecture
Databases and Tools: MySQL, MS SQL Server, Postgresql, Hadoop (Hive, HAWQ, Drill),
NoSQL: HBase, HDFS, Cassandra, MongoDB, Couch base, Elastic search, and Neo4j.
Other Tools: Hive, Pig, MapReduce, Spark
Development
Languages: Java, Scala, Python, Bash Scripting, JavaScript
Frameworks: Spring Boot, Python Flask, Oozie, Play & Akka
DevOps: Docker, Vagrant, Github, Bitbucket
Cloud PlatForms
AWS: EC2, Lambda, Kenisis, RDS, Redshift, EMR, DynamoDB
Azure: EventHub, Data Lake, ML Studio
Professional Experience
Tatras Data Services Pvt Ltd Formerly (Algorithmic Insights Pvt Ltd) (April 2015 - Current)
Data Scientist (Client Facing Role)
Leading Data Science team from technical front and involved in setting up PoCs with clients. Develop highly competent Artificial Intelligent algorithms and complex modelling techniques.
Highlights:
●Automatic Text Generation, Headline Generation, Text Summarization using RNN with Attentional Encoders.
●Footfall prediction of retail stores using time series forecasting using Deep Learning Architectures.
●Developing Digital Marketing Automation Product (LTV, Customer Segmentation) using Spark, Google AdWords, and Hadoop Stack.
●Architected and Developed Near-
●Developed an adaptive learning system using Probabilistic Graphical Theory and Bayesian Belief Network (Gartner Listed).
●Content based Song Recommender System using Music Information Retrieval Techniques.
●Developed Scoring of resumes with respect to the job description.
●Designed a customer analytics schema for reporting and predictive analytics, and also
delivering prescriptive and predictive analytics based on customer interaction on monthly basis for business.
Aureus Analytics Pvt Ltd (December
Hadoop Consultant (Client Facing Role)
Served as a consultant for pilot project on Customer Genome using Hadoop Stack at Client Side (Axis Bank, Mumbai), while dealing with customer demographic, transaction (CC, DC, POS), Insurance, Loan, Investment Data.
Highlights:
●Configured SQL database to store Hive metadata and build a Hadoop data warehouse while importing data from Oracle Exadata using Sqoop and Linux Bash Scripting.
●Build a Customer Genome for Marketing Analytics while different life stages as Married, Student, Kids, Retired, Earning etc and finally analysing Next Best Action (NBA) by calculating different customer events like, CASA, CARD, Investment, Loan Events using Pig, Hive, HCatalog, Oozie, Linux Bash, Java and SAS.
Educational Experience
Education and Training
●Udacity: Nanodegree Machine Learning Engineer,
●School Of I.C.T, Gautam Buddha University: Integrated B.Tech (Electronics & Communication Engineering) + M.Tech (Intelligent Systems).
●
●Edureka: Business Analytics using R.
●Thappar University, Patiala: Summer School of Data Analysis and Machine Learning by Google India, NVIDIA, Infosys Mohali.
Academic & Independent Project
∙Detect Lane Lines: Detect highway lane lines from a video stream. Use OpenCV image analysis techniques to identify lines, including Hough transforms and Canny edge detection.
∙Traffic Sign Classification: Implement and train a convolutional neural network to classify traffic signs. Use validation sets, pooling, and dropout to choose a network architecture and improve performance.
∙Behavioral Cloning: Architect and train a deep neural network to drive a car in a simulator. Collect your own training data and use it to clone your own driving behavior on a test track.
∙Vehicle Tracking: Track vehicles in camera images using image classifiers such as SVMs, decision trees, HOG, and DNNs. Apply filters to fuse position data.
∙Song Genre Classifier: Implemented and train a convolutional recurrent neural network to classify music genres.
∙Reinforcement Learning: Train a Smartcab to Drive
∙M.Tech Dissertation: “Detection of Explicit Images on Large Scale using MapReduce” with assistance Xebia IT Architects India Pvt Ltd.
∙Developed Small IoT Applications eg(Home Automation System) using AVR, Raspberry Pi and Redis.
Publications
“Pro Apache Spark” upcoming book on Spark and Its ecosystem with Apress Media.
“Detection of nude images on large scale using Hadoop” , Ahuja Chirag, Baghel Anurag Singh , Singh Gotam, Print IEEE
“Human Gesture Recognition System using Computer Vision” in IJETAE (ISSN 22502459), Volume 4, Special Issue 1, February 2014, Page(s): 849- 853.
1.Data Science Consultant for
2.Freelance Big Data Hadoop and Spark Trainer.
3.Delivered Hadoop Training at National Institute of Technology, Bhopal on November
15, 2014. Short Term Training Program at NIT, Bhopal (MANIT) on “Hands on Big Data using Hadoop”
4.Delivered Java Training at WizIQ from January


static neSimulator
* CreateSimulator(const
neSimulatorSizeInfo & sizeInfo,
neAllocatorAbstract * alloc
= NULL,
const neV3 * gravity
= NULL);
static void DestroySimulator(neSimulator * sim);
Use CreateSimulator to create a new instance of the simulator.
sizeInfo specifies the amount of various objects to allocate within the simulator.
alloc is a user-supplied memory allocator object. Supply your own allocator object base on the neAllocatorAbstract class. Supplying NULL tells the simulator to use the default allocator object which uses the standard malloc and free functions.
Use DestroySimulator to delete an existing instance of the simulator object.
See also neSimulatorSizeInfo, neAllocatorAbstract.
neRigidBody * CreateRigidBody();
neRigidBody * CreateRigidParticle();
neAnimatedBody * CreateAnimatedBody();
void FreeRigidBody(neRigidBody
* body);
void FreeAnimatedBody(neAnimatedBody
* body);
Use these functions to create or free a rigid body (neRigidBody), rigid particle (neRigidBody), or animated body (neAnimatedBody).
See also neRigidBody, neAnimatedBody.
neCollisionTable * GetCollisionTable();
Retrieve the pointer to the collision table. A collision table specifies the collision response between different collision groups inside the simulation.
See also neCollisionTable
bool SetMaterial(s32
index, f32 friction,
f32 restitution);
bool GetMaterial(s32
index, f32& friction,
f32& restitution);
Specify and retrieve the material properties for a corresponding material index.
By default all materials have the following values:
friction = 0.4
restitution = 0.5
void Advance(f32 sec, s32 nSteps = 1, nePerformanceReport * perfReport = NULL);
Advance the simulation by the amount sec, specified in milliseconds. nSteps specifies the number of sub-steps to perform.
perfReport, if supplied, would be filled with the simulator's performance information during this time step.
See also nePerformanceReport
void SetTerrainMesh(neTriangleMesh * tris);
Use this function to specify the terrain mesh to the simulator.
See also neTriangleMesh
neJoint * CreateJoint(neRigidBody
* bodyA);
neJoint * CreateJoint(neRigidBody
* bodyA, neRigidBody *
bodyB);
neJoint * CreateJoint(neRigidBody
* bodyA, neAnimatedBody
* bodyB);
void FreeJoint(neJoint
* joint);
Create and free joint a object. The first form of CreateJoint takes one neRigidBody. This means the joint constraint of the rigid body to the world. The second and third form require a joint which constrains bodyA to another rigid body or to an animated body respectively.
When a rigid body or animated body is freed, all their associated joints, geometries, sensors and callbacks are freed automatically.
See also neJoint
void SetBreakageCallback(neBreakageCallback
* cb);
neBreakageCallback * GetBreakageCallback();
Specify and retrieve the breakage callback function. The breakage callback function is called by the simulator whenever a breakage is about to occur. The callback function is called for each geometry object which has broken. When the geometry is broken, a new rigid body (or rigid particle, depending the breakage flag) is spawned. During the breakage callback function the application can retrieve the pointer to the newly spawned object.
See also neBreakageCallback
void SetCollisionCallback(neCollisionCallback
* cb);
neCollisionCallback * GetCollisionCallback();
Specify and retrieve the collision callback function. The collision callback function returns information about a collision between two objects in the simulation. Each pair of objects will only receive a maximum of one collision callback for each timestep of the simulation.
See also neCollisionCallback
void SetTerrainTriangleQueryCallback(neTerrainTriangleQueryCallback
* cb);
neTerrainTriangleQueryCallback * GetTerrainTriangleQueryCallback();
void SetLogOutputCallback(neLogOutputCallback
* cb);
neLogOutputCallback * GetLogOutputCallback();
void SetLogOutputLevel(LOG_OUTPUT_LEVEL
lvl = LOG_OUTPUT_LEVEL_FULL);
neSimulatorSizeInfo GetCurrentSizeInfo();
neSimulatorSizeInfo GetStartSizeInfo();
See also neSimulatorSizeInfo
void GetMemoryAllocated(s32 & memoryAllocated);


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We provide a plethora of services ranging from room additions, kitchen remodeling, and bathroom remodeling, you name it, we can do it.
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MLB ERA Leaders 2019
Name
Team
ERA
Hyun-Jin Ryu
Los Angeles Dodgers
1.74
Max Scherzer
Washington Nationals
2.41
Mike Soroka
Atlanta Braves
2.44
Rankings as of July 28, 2019 at 2:30 PM


History
Founded in 2012, the AGROPRO is an entity created by farmers, for farmers. The entity was established thanks to 1,500 women from 162 SHGs who wanted to ensure that farmers could sell their produce in the marketplace at prices and terms set by them and not by middlemen or traders. In 2014, the FPO became the first producer company to be granted an equity grant by the Indian government.
AGROPRO current success is in part, thanks to Raghan Raghunathan, an engineer, who chose not to tread the conventional path of joining a large MNC as most of his peers do. Instead, Raghunathan joined the Young India Fellowship and, in 2014, he began heading AGROPRO operations across 85 villages.
In 2014, the FPO contracted a price of Rs 4,800 per quintal for soya beans on NCDEX. Three weeks later, soya bean prices crashed to as low as around Rs 3,300 per quintal. However, AGROPRO hedging ensured that the losses from selling soya bean crops were offset by trading on NCDEX. This was the first time that RamRahim raked in profits, since 2012, when it was first launched. What's more, Raghunathan's initiative ensured that farmers adopted customised spiral graders, which in turn, ensured that the grading process took place at the farm. This process helped farmers sell directly to buyers.


{% include header.html %} {% if page.title == "frontpage" %} Launched: 1 October 2019 {{ content }} {% else %} {% include navigation.html %}
Launched: 1 October 2019


--- title: "Oops! Sorry, we couldn't find that page" permalink: /404.html layout: application message: >-
Please use the navigation above to help find the section of the site you're interested in reading.
If you think there should be a page here, and something is now missing then please report a bug
By the way, did you know that when you asked for this page, you browser was sent a 404 error code? Standardising error codes is just one of the things we have to think about when creating different types of standard to support exchanging data and information.
---


What is AI Gaming?
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opportunities for
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What is AI Gaming?
AI Gaming.com
is a platform that allows computer programs also known as-
bots
, to play
challenging games
against each other and win
bitcoins.
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to identify the subject of each image using
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Head to official AI Gaming website & Start practicing now!
Still confused? Let's Talk
Email us your queries<EMAIL_ADDRESS>and one of our expert team member will reach out for your assistance.


The picture you have taken must be in the ratio of 16:9 (Landscape) or 4:3 (Potrait) with minimum of 8MP for smartphones and 12MP for cameras
Your capture determines your concept of taking photography and the love towards it. Capture beautiful shots to get adorable prices
We expect you to preserve EXIF data of your Images whether it is mobile or camera. If you remove the EXIF data, Your pic will be disqualified. We take atmost of 30% of post processing, Any editing which has more edited properties will be disqualified


to dense,to study and my fammily
my name is Mukasine Marie Claire,I studied secondary school at Lycee de Nyanza
and I studied at Kigali Independent Univeristy(ULK) then the training of Wecode
My-first-website is my first website then we have:html and css
My-first-websiteCookie webpage we have a very detailed recipe to make the best cookies.
Cookie webpagemy<EMAIL_ADDRESS>tel:0782586013


--- layout: post title: Adding custom dimensions in Webtrends. A video tutorial. date: 2012-02-23 19:40:59.000000000 +00:00 type: post published: true status: publish categories: - analytics - web tags: - analytics - video - webtrends meta: tmac_last_id: '618797362664837120' _edit_last: '1' _oembed_da6443a46dbea29c2bdacde723307754: _oembed_b6703ebdde1a806d8fc76e14166d122c: _oembed_bc7a6e60884d2668738ef7b475928105: _oembed_cdef56b5a0a661adf2e6a640f49109f7: _oembed_2c0c69351d0e45ce13df42f25abfc856: _oembed_9b969e317ce5bf8c3cab699fdffb399c: _oembed_5c1233e6614610ad2b5151f2a29b8ec8: _oembed_c30e65f59ac34b2039ab68036b683c68: _oembed_4a89f80bea26fea0af8c49745859f081: _oembed_d9e48e4b2bb0425d58fa6d3a282da5d0: _pingme: '1' _encloseme: '1' _wpas_skip_11278197: '1' _wpcom_is_markdown: '1' author: David Simpson excerpt_separator: ---
This post is a short video tutorial that shows how to add custom dimensions to Webtrends.
Having setup event tracking on Webtrends, you'll likely want to build reports in the Webtrends admin UI. Even after adding event tracking JavaScript, reporting of your dimension or measure doesn't just happen magically. Webtrends needs to know what to look for. So, before you can create reports, you'll need to add the dimension.
When creating custom dimensions or measures from events tracked via dcsMultiTrack, example query parameter DCSext.w_custom_identifier will be converted into w_custom_identifier in Webtrends, so this is the name of the query parameter that you then add in the Webtrends Admin UI.
Check the short video below for details on adding new dimensions:
Lookup tables are a great way of converting one metric into another within Webtrends. The easiest way to create a lookup table is to add a CSV file under the Webtrends installation directory here:
.wtm_wtxdatfilesdatasourcesMyLookupTabel.csv
If you use Webtrends On Demand, then you'll have to submit the lookup table to Webtrends for them to install.
Check the short video below for details on adding a new dimension based on a lookup table


This class manages windows using the GLFW subsystem.
More...
#include <VEWindowGLFW.h>
|
| static void | framebufferResizeCallbackGLFW (GLFWwindow *window, int width, int height) |
| | Callback to receive GLFW events from window size change. More...
|
| |
| static void | key_callbackGLFW (GLFWwindow *window, int key, int scancode, int action, int mods) |
| | Callback to receive GLFW events from the keyboard. More...
|
| |
| static void | cursor_pos_callbackGLFW (GLFWwindow *window, double xpos, double ypos) |
| | Callback to receive GLFW events that mouse has moved. More...
|
| |
| static void | mouse_button_callback (GLFWwindow *window, int button, int action, int mods) |
| | Callback to receive GLFW events from mouse buttons. More...
|
| |
| static void | mouse_scroll_callback (GLFWwindow *window, double xoffset, double yoffset) |
| | Callback to receive GLFW events from mouse scroll wheel. More...
|
| |
|
|
GLFWwindow * | m_window |
| | handle to the GLFW window
|
| |
This class manages windows using the GLFW subsystem.
◆ createSurface()
| bool ve::VEWindowGLFW::createSurface |
( |
VkInstance |
instance, |
|
|
VkSurfaceKHR * |
pSurface |
|
) |
| |
|
protectedvirtual |
Create a KHR surface for intercting with the GLFW window.
- Parameters
-
| [in] | instance | The Vulkan instance |
| [out] | pSurface | Pointer to the created surface. |
- Returns
- boolean falggin success
Reimplemented from ve::VEWindow.
◆ cursor_pos_callbackGLFW()
| void ve::VEWindowGLFW::cursor_pos_callbackGLFW |
( |
GLFWwindow * |
window, |
|
|
double |
xpos, |
|
|
double |
ypos |
|
) |
| |
|
staticprotected |
Callback to receive GLFW events that mouse has moved.
- Parameters
-
| [in] | window | Pointer to the GLFW window that caused this event |
| [in] | xpos | New x-position of the cursor |
| [in] | ypos | New y-position of the cursor |
◆ framebufferResizeCallbackGLFW()
| void ve::VEWindowGLFW::framebufferResizeCallbackGLFW |
( |
GLFWwindow * |
window, |
|
|
int |
width, |
|
|
int |
height |
|
) |
| |
|
staticprotected |
Callback to receive GLFW events from window size change.
- Parameters
-
| [in] | window | Pointer to the GLFW window that caused this event |
| [in] | width | New width of the window |
| [in] | height | New height of the window |
◆ getExtent()
| VkExtent2D ve::VEWindowGLFW::getExtent |
( |
| ) |
|
|
virtual |
- Returns
- the extent of the window
Reimplemented from ve::VEWindow.
◆ getRequiredInstanceExtensions()
| std::vector< const char * > ve::VEWindowGLFW::getRequiredInstanceExtensions |
( |
| ) |
|
|
protectedvirtual |
- Returns
- the required Vulkan instance extensions to interact with the local window system
Reimplemented from ve::VEWindow.
◆ getWindowHandle()
| virtual GLFWwindow* ve::VEWindowGLFW::getWindowHandle |
( |
| ) |
|
|
inlinevirtual |
<
- Returns
- the GLFW window handle.
◆ initWindow()
| void ve::VEWindowGLFW::initWindow |
( |
int |
WIDTH, |
|
|
int |
HEIGHT |
|
) |
| |
|
protectedvirtual |
Initialize a new GLFW window and set callbacks.
- Parameters
-
| [in] | WIDTH | Width of the new window |
| [in] | HEIGHT | Height of the new window |
Reimplemented from ve::VEWindow.
◆ key_callbackGLFW()
| void ve::VEWindowGLFW::key_callbackGLFW |
( |
GLFWwindow * |
window, |
|
|
int |
key, |
|
|
int |
scancode, |
|
|
int |
action, |
|
|
int |
mods |
|
) |
| |
|
staticprotected |
Callback to receive GLFW events from the keyboard.
This callback is called whenever the user does something the keyboard. Events cause VEEvents to be created and sent to the VEEngine to be processed. Pressing a key will actually cause two events. One indicating that the key has been pressed, and another one indicating that the key is still pressed. The latter one is continuous until the key is released again. Also it will not be processed immediately but only in the following render loop, hence using the loop counter to schedule it for the future.
- Parameters
-
| [in] | window | Pointer to the GLFW window that caused this event |
| [in] | key | Key ID that caused this event |
| [in] | scancode | Not used |
| [in] | action | ID of what happened (press, release, continue) |
| [in] | mods | Not used |
◆ mouse_button_callback()
| void ve::VEWindowGLFW::mouse_button_callback |
( |
GLFWwindow * |
window, |
|
|
int |
button, |
|
|
int |
action, |
|
|
int |
mods |
|
) |
| |
|
staticprotected |
Callback to receive GLFW events from mouse buttons.
This callback is called whenever the user does something the mouse buttons. Events cause VEEvents to be created and sent to the VEEngine to be processed. Pressing a mouse button will actually cause two events. One indicating that the button has been pressed, and another one indicating that the button is still pressed. The latter one is continuous until the button is released again. Also it will not be processed immediately but only in the following render loop, hence using the loop counter to schedule it for the future.
- Parameters
-
| [in] | window | Pointer to the GLFW window that caused this event |
| [in] | button | ID of the mouse button that was interacted with |
| [in] | action | ID of the action (press, release, repeat) |
| [in] | mods | Not used |
◆ mouse_scroll_callback()
| void ve::VEWindowGLFW::mouse_scroll_callback |
( |
GLFWwindow * |
window, |
|
|
double |
xoffset, |
|
|
double |
yoffset |
|
) |
| |
|
staticprotected |
Callback to receive GLFW events from mouse scroll wheel.
- Parameters
-
| [in] | window | Pointer to the GLFW window that caused this event |
| [in] | xoffset | Xoffset of scroll wheel |
| [in] | yoffset | Yoffset of scroll wheel |
◆ windowShouldClose()
| virtual bool ve::VEWindowGLFW::windowShouldClose |
( |
| ) |
|
|
inlineprotectedvirtual |
- Returns
- whether window wants to be closed
Reimplemented from ve::VEWindow.
The documentation for this class was generated from the following files:


#include <random_ops.h>
Outputs random values from the Gamma distribution(s) described by alpha.
This op uses the algorithm by Marsaglia et al. to acquire samples via transformation-rejection from pairs of uniform and normal random variables. See http://dl.acm.org/citation.cfm?id=358414
Arguments:
Optional attributes (see Attrs
):
seed
or seed2
are set to be non-zero, the random number generator is seeded by the given seed. Otherwise, it is seeded by a random seed.Returns:
Output
: A tensor with shape shape + shape(alpha)
. Each slice [:, ..., :, i0, i1, ...iN]
contains the samples drawn for alpha[i0, i1, ...iN]
. The dtype of the output matches the dtype of alpha.
Constructors and Destructors |
|
|---|---|
RandomGamma(const ::tensorflow::Scope & scope, ::tensorflow::Input shape, ::tensorflow::Input alpha)
|
|
RandomGamma(const ::tensorflow::Scope & scope, ::tensorflow::Input shape, ::tensorflow::Input alpha, const RandomGamma::Attrs & attrs)
|
Public attributes |
|
|---|---|
operation
|
|
output
|
Public functions |
|
|---|---|
node() const
|
::tensorflow::Node *
|
operator::tensorflow::Input() const
|
|
operator::tensorflow::Output() const
|
|
Public static functions |
|
|---|---|
Seed(int64 x)
|
|
Seed2(int64 x)
|
Structs |
|
|---|---|
|
tensorflow:: |
Optional attribute setters for RandomGamma. |
Operation operation
::tensorflow::Output output
RandomGamma( const ::tensorflow::Scope & scope, ::tensorflow::Input shape, ::tensorflow::Input alpha )
RandomGamma( const ::tensorflow::Scope & scope, ::tensorflow::Input shape, ::tensorflow::Input alpha, const RandomGamma::Attrs & attrs )
::tensorflow::Node * node() const
operator::tensorflow::Input() const
operator::tensorflow::Output() const
Attrs Seed( int64 x )
Attrs Seed2( int64 x )


open fun check(connectorConfiguration: ConnectorConfiguration): List<String>
Checks the connector configuration.
Return empty list if there is no error, and a list of errors if this configuration is invalid.


LVM manages disk drives. It allows multiple drives and partitions to be combined into larger volume groups, assists in making backups through a snapshot, and allows for dynamic volume resizing. It can also provide mirroring similar to a RAID 1 array.
A complete discussion of LVM is beyond the scope of this introduction, but basic concepts are presented below.
To run any of the commands presented here, the LVM2-2.03.09 package must be
installed. All commands must be run as the root
user.
Management of disks with lvm is accomplished using the following concepts:
These are physical disks or partitions such as /dev/sda3 or /dev/sdb.
These are named groups of physical volumes that can be manipulated by the administrator. The number of physical volumes that make up a volume group is arbitrary. Physical volumes can be dynamically added or removed from a volume group.
Volume groups may be subdivided into logical volumes. Each logical volume can then be individually formatted as if it were a regular Linux partition. Logical volumes may be dynamically resized by the administrator according to need.
To give a concrete example, suppose that you have two 2 TB disks.
Also suppose a really large amount of space is required for a very
large database, mounted on /srv/mysql
.
This is what the initial set of partitions would look like:
Partition Use Size Partition Type
/dev/sda1 /boot 100MB 83 (Linux)
/dev/sda2 / 10GB 83 (Linux)
/dev/sda3 swap 2GB 82 (Swap)
/dev/sda4 LVM remainder 8e (LVM)
/dev/sdb1 swap 2GB 82 (Swap)
/dev/sdb2 LVM remainder 8e (LVM)
First initialize the physical volumes:
pvcreate /dev/sda4 /dev/sdb2
A full disk can be used as part of a physical volume, but beware that the pvcreate command will destroy any partition information on that disk.
Next create a volume group named lfs-lvm:
vgcreate lfs-lvm /dev/sda4 /dev/sdb2
The status of the volume group can be checked by running the command vgscan. Now create the logical volumes. Since there is about 3900 GB available, leave about 900 GB free for expansion. Note that the logical volume named mysql is larger than any physical disk.
lvcreate --name mysql --size 2500G lfs-lvm lvcreate --name home --size 500G lfs-lvm
Finally the logical volumes can be formatted and mounted. In this example, the jfs file system (jfsutils-1.1.15) is used for demonstration purposes.
mkfs -t ext4 /dev/lfs-lvm/home mkfs -t jfs /dev/lfs-lvm/mysql mount /dev/lfs-lvm/home /home mkdir -p /srv/mysql mount /dev/lfs-lvm/mysql /srv/mysql
The LFS boot scripts automatically make these file systems available
to the system in the checkfs script. Edit the /etc/fstab
file as required to automatically mount
them.
A LVM logical volume can host a root filesystem, but requires the use of an initramfs (initial RAM file system) and is not discussed here.
For a more information about LVM, see the LVM HOWTO and the lvm man pages.
Last updated on 2020-03-25 16:46:27 -0500


PIN2TOP is a free AutoHotkey (AHK) script compiled to a tiny Windows executable. It is based on a very similar tool named "Always on Top" by Amit Agarwal, founder of the Digital Inspiration blog.
It has a new name, a more generic icon (to match the Windows 10 style better) and it doesn't limit itself to only a single line of code.
If you are curious what is in the script or if you want to build your own version check out the uncompiled script - or go straight to the download section if not.
First make sure pin2top.exe is running (start it manually or add it to the startup folder), then select a window and hit CTRL+SPACE to keep it always on top. If you want to unpin a window just do it again or exit PIN2TOP via the tray icon.


|
EnkiUtils
Small library of classes that Enki Labs uses internally.
|
#import <EnkiUtilities.h>
Class Methods | |
| (UIColor *) | + defaultBackgroundColor: |
| (float) | + pixelsForRetina: |
| (BOOL) | + AlmostEqualRelative:and: |
| (void) | + keyboardWasShown:view:scrollView:activeField:activeCell: |
EnkiUtilities is a fairly vague collection of methods, classes, and class categories that I've developed over the years that I find personally useful when writing iOS apps. Feel free to use any or all of these in your apps.
The categories, in particular, contain code that I've mostly not written, but rather found on line, mostly likely on stackoverflow and I've linked to the the authors when I can. I specifically do not claim copyright no them, they are not my work, just work that has been released into the wild for public consumption. (To be strictly legal, I should contact these authors for permission since they have not specified what licenese they've used, but that really seems like over kill for something that is short and published by the others for the purpose of reuse!
Copyright (c) 2010-2013 Enki Labs, and other specified authors
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Definition at line 89 of file EnkiUtilities.h.
| + (BOOL) AlmostEqualRelative: | (float) | A | |
| and: | (float) | B | |
Returns TRUE if the two float numbers are almost equal. Be sure to read http://randomascii.wordpress.com/2012/02/25/comparing-floating-point-numbers-2012-edition/ This is a good algorightm for Enkid's applications, for many applications this is not at all good. Read and understand
Definition at line 24 of file EnkiUtilities.m.
| + (UIColor *) defaultBackgroundColor: | (UITableViewCell *) | inCell |
Returns the background color of tabbed group cell. This color changed between iOS4 and iOS5
Note how we use the static UIColor object as a cache so we only have do some expensive operations once.
Definition at line 45 of file EnkiUtilities.m.
| + (void) keyboardWasShown: | (NSNotification *) | aNotification | |
| view: | (UIViewController *) | view | |
| scrollView: | (UITableView *) | scrollView | |
| activeField: | (UIView *) | activeField | |
| activeCell: | (UITableViewCell *) | activeCell | |
keyboardWasShown should be called from your keyboard Notification code to scroll the keyboard into view
| the | notification object sent with the notification that the keyboard was raised |
| view | the view that the keyboard is being raised from |
| the | srollview that contains the table that the active field (and optionally, the active cell) |
| the | field that is being typed into |
| the | cell in the table that the field is in. May be nil |
| + (float) pixelsForRetina: | (float) | pixels |
returns the number of pixels needed, multiplying by 2 for Retina displays.
Definition at line 13 of file EnkiUtilities.m.


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