Day 6 - Intro to git

Fall 2022

Dr. Jared Joseph

September 19, 2022

Overview

Timeline

  • git
  • Github
  • git Workflow

Goal

To understand the purpose and application of git and Github

git

The Problem

As projects progress, multiple versions of files are created.

(Different versions in time, files with different features, experiments that didn’t work, etc.)

This causes:

  • Confusion as to the most recent file
  • Clutter
  • Difficulty collaborating

What is git

git is a system for version control.

  • Keep track of multiple versions of files
  • Try experiments without messing up your working code
  • Serves as a backup
  • Allows multiple people to work on the same file

Kinda Like Docs History … But Not

How git Works

Why git is so Efficient

Working with git

git on Your Computer

Github

git and Github

Github as Remote Storage

Collaboration on Github

Github as Portfolio

Using git

Key Terms

repo
Repository - the collection of git files that contain your project
commit
To save a checkpoint of your project for future reference
revert
Undo all changes made to a file since the last commit
staged
A file that is preparing to be commited, but has not yet been
push
To ‘push’ files from your local machine onto an internet service
pull
To ‘pull’ files from a remote service onto your machine
merge
To combine two versions of the same file or project
conflict
When two files or set of files have changes that cannot be easily merged
checkout
Load in a previous checkpoint (commit)

git Workflow

In R Studio

The Commit Window

git History

Code Along

For Next Time

Topic

Exploratory Data Analyses

To-Do

  1. Finish Worksheet
  2. Lab 0 & 1 Due
  3. Read: Chapter 12 Robust Summaries
  4. Read: Why Visualize
  5. Read: All the plot types

SDS 192-03: Intro to Data Science