class: center, middle, inverse, title-slide # Data Visualization ## Version control ### Andrew Irwin, <a href="mailto:a.irwin@dal.ca" class="email">a.irwin@dal.ca</a> ### Math & Stats, Dalhousie University ### 2021-01-15 (updated: 2021-01-01) --- class: middle # What is version control software for? * Managing changes to files * Tracking versions between major revisions * Sharing data, code, and results with team members * Sharing data, code, and results with the world --- class: middle # Why is version control software important for visualizations? * Manage changes to data * Facilitate collaboration * Organize revision to methods * Manage your archive of past methods and results * Distribute data, methods and results --- class: middle # Core git concepts * Working directory * Repository * stage (add) files * commit to repository * Commit messages --- class: middle # What is github? * Internet service to manage repostory in remote location ("remotes") * Collaboration tool * Many other services (error checking, websites, teams, feedback) * _Need a free account_. Sign up at github.com --- class: middle # How to use git and github with Rstudio? * Create a project with a git repository * Use the "git" pane to stage, commit, and push to remote (github) --- class: inverse, middle # Demonstrations * See step-by-step instructions in lesson --- class: middle # Suggested reading * Course notes: Version control * [Intro to Data Science](https://www.introds.org/) course slides on [version control](https://ids-s1-20.github.io/slides/week-01/w1-d06-toolkit-git/w1-d06-toolkit-git.html#1) * [Data science in a box](https://datasciencebox.org/) chapter on [version control](https://datasciencebox.org/version-control.html) * Bryan and others. [Happy git with R](https://happygitwithr.com/) --- class: middle, inverse # Task * Task 4: * Check out the github repository for your assignment 1