nashid

Welcome to the Ammonite Repl 0.8.0
(Scala 2.11.8 Java 1.8.0_91)

@ import scala.util.Try
import scala.util.Try

@ val listOfTries: List[Try[String]] = List(Try("a"), Try("b"), Try("c"))
listOfTries: List[Try[String]] = List(Success("a"), Success("b"), Success("c"))

// I have a List[Try[String]] but I actually want a Try[List[String]].

nashid

Operation	Input	Result	Notes
map	F[A] , A => B	F[B]	Functor
apply	F[A] , F[A => B]	F[B]	Applicative
(fa, fb, ...).mapN	(F[A], F[B], ...) , (A, B, ...) => C	F[C]	Applicative
(fa, fb, ...).tupled	(F[A], F[B], ...)	F[(A, B, ...)]	Applicative
flatMap	F[A] , A => F[B]	F[B]	Monad
traverse	F[A] , A => G[B]	G[F[A]]	Traversable; fa.traverse(f) == fa.map(f).sequence; "foreach with effects"
sequence	F[G[A]]	G[F[A]]	Same as fga.traverse(identity)
.	.	.	.

nashid

# There are 3 levels of git config: global, project, and system.

# global: Global configs are available for all projects for the current user and stored in ~/.gitconfig.
# project: Project configs are only available for the current project and stored in .git/config in the project's directory.
# system: System configs are available for all the users/projects and stored in /etc/gitconfig.

# Create a global config
$ git config --global user.name "John Doe"

# Create a project specific config, you have to execute this under the project's directory.

nashid

Presented Papers

• Siri, Write the Next Method
• Code Prediction by Feeding Trees to Transformers
• Towards Automating Code Review Activities
• Traceability Transformed: Generating more Accurate Links with Pre-Trained BERT Models
• Studying the Usage of Text-To-Text Transfer Transformer to Support Code-Related Tasks
• A Context-based Automated Approach for Method Name Consistency Checking and Suggestion
• [GUIGAN: Learning to Generate GUI Designs Using Generative Adversarial Networks](https://www.co

nashid

The repository for the assignment is public and Github does not allow the creation of private forks for public repositories.

The correct way of creating a private frok by duplicating the repo is documented here.

For this assignment the commands are:

1. Create a bare clone of the repository. (This is temporary and will be removed so just do it wherever.)

git clone --bare git@github.com:usi-systems/easytrace.git

nashid

#
#  Original solution via StackOverflow:
#    http://stackoverflow.com/questions/35802939/install-only-available-packages-using-conda-install-yes-file-requirements-t
#

#
#  Install via `conda` directly.
#  This will fail to install all
#  dependencies. If one fails,
#  all dependencies will fail to install.

nashid

# For Windows users# Note: <> denotes changes to be made

#Create a conda environment
conda create --name <environment-name> python=<version:2.7/3.5>

#To create a requirements.txt file:
conda list                              #Gives you list of packages used for the environment

conda list -e > requirements.txt        #Save all the info about packages to your folder

nashid

tmux vs. screen commands

---

Action	tmux	screen
start a new session	tmux tmux new tmux new-session	screen
start a new session with a name	tmux new -s name	screen -S name
re-attach a detached session	tmux attach tmux attach-session	screen -r
re-attach a detached session with a name	tmux attach -t name tmux a -t name	screen -r name
re-attach an attached session (detaching it from elsewhere)	tmux attach -dtmux attach-session -d	screen -dr

nashid

I recently came across the need to spawn multiple threads, each of which needs to write to the same file. Since the file will experience contention from multiple resources, we need to guarantee thread-safety.

NOTE: The following examples work with Python 3.x. To execute the following programs using Python 2.7, please replace threading.get_ident() with thread.get_ident(). As a result, you would need to import thread and not threading.

1. (The following example will take a very long time). It will create 200 threads, each of which will wait until a global lock is available for acquisition.

# threading_lock.py
import threading

nashid

# Sample PBS job script
#
# Copy this script, customize it and then submit it with the ``qsub''
# command. For example:
#
# cp pbs-template.sh myjob-pbs.sh
# {emacs|vi} myjob-pbs.sh
# qsub myjob-pbs.sh
#
# PBS directives are fully documented in the ``qsub'' man page. Directives