Oct 31

Nov 1

The Unix Shell

• Files and directories: pwd, cd, ls, mkdir, ...
• History and tab completion
• Pipes and redirection
• Looping over files
• Creating and running shell scripts
• Finding things: grep, find, ...

Programming in R

• Using libraries
• Working with arrays
• Reading and plotting data
• Creating and using functions
• Loops and conditionals: for, if, else, ...
• Defensive programming
• Using R from the command line

Version Control with Git

• Creating a repository
• Recording changes to files: add, commit, ...
• Viewing changes: status, diff, ...
• Ignoring files
• Working on the web: clone, pull, push, ...
• Resolving conflicts
• Open licenses
• Where to host work, and why

Editor

When you're writing code, it's nice to have a text editor that is optimized for writing code, with features like automatic color-coding of key words. The default text editor on Mac OS X and Linux is usually set to Vim, which is not famous for being intuitive. if you accidentally find yourself stuck in it, try typing the escape key, followed by ':q!' (colon, lower-case 'q', exclamation mark), then hitting Return to return to the shell.

The Bash Shell

Bash is a commonly-used shell. Using a shell gives you more power to do more tasks more quickly with your computer.

Git

Git is a state-of-the-art version control system. It lets you track who made changes to what when and has options for easily updating a shared or public version of your code on github.com.

R

R is a programming language that is especially powerful for data exploration, visualization, and statistical analysis. To interact with R, we will use RStudio, an interactive development environment (IDE).

Git Bash

Install Git for Windows by download and running the installer. This will provide you with both Git and Bash in the Git Bash program.

Software Carpentry Installer (optional)

This installer requires an active internet connection

After installing R and Git Bash:

• Download the installer.
• If the file opens directly in the browser select File→Save Page As to download it to your computer.
• Double click on the file to run it.

Editor

nano is the editor installed by the Software Carpentry Installer, it is a basic editor integrated into the lesson material.

Notepad++ is a popular free code editor for Windows. Be aware that you must add its installation directory to your system path in order to launch it from the command line (or have other tools like Git launch it for you). Please ask your instructor to help you do this.

R

Install R by downloading and running this .exe file from CRAN. Also, please install the RStudio IDE.

Bash

The default shell in all versions of Mac OS X is bash, so no need to install anything. You access bash from the Terminal (found in /Applications/Utilities). You may want to keep Terminal in your dock for this workshop.

Editor

We recommend Text Wrangler or Sublime Text. In a pinch, you can use nano, which should be pre-installed.

Git

Install Git for Mac by downloading and running the installer. For older versions of OS X (10.5-10.7) use the most recent available installer available here. Use the Leopard installer for 10.5 and the Snow Leopard installer for 10.6-10.7.

R

Install R by downloading and running this .pkg file from CRAN. Also, please install the RStudio IDE.

Bash

The default shell is usually bash, but if your machine is set up differently you can run it by opening a terminal and typing bash. There is no need to install anything.

Editor

Kate is one option for Linux users. In a pinch, you can use nano, which should be pre-installed.

Git

If Git is not already available on your machine you can try to install it via your distro's package manager (e.g. apt-get or yum).

R

You can download the binary files for your distribution from CRAN. Or you can use your package manager, e.g. for Debian/Ubuntu run apt-get install r-base or yum install R. Also, please install the RStudio IDE.

Git, R, and General Setup

Jennifer Bryan teaches a Data Analysis / Data Science course at UBC which has an excellent resource list covering Git, R, and more.

Git for Publishing

Karthik Ram is assembling a collection of Git resources for collaboration and publising.