详解数据分析中的方差，标准差和异常值的使用

Group Changes

• List all local branches in the current repository:
  $ git branch

• Create a new branch with specified name:
  $ git branch [branch-new]

• Switch to the specified branch and updates the working directory:
  $ git checkout [branch-name]

• Combine the specified branch to the current branch:
  $ git merge [branch-name]

• Delete the specified branch:
  $ git branch -d [branch-name]

Suppress Tracking

• A text file named .gitigore suppresses accidental versioning of files and paths matching the specified patterns, for example:
  *.log temp-* dir/*
  will ignore log file and started with temp- files and all files in dir directory.

• List all ignore files in this project:
  $ git ls-files --other --ignored --exclude-standard

Review History

• List all version history for the current branch:
  $ git log

• List viewsion history for a single file, including rename:
  $ git log --follow [file]

• Show content differences between two branchs:
  $ git diff [first-branch] [second-branch]

• Output metadata and content changes of the specified name:
  $ git show [commit]