第 2 章 R and RStudio

2.1 主要參考書籍

• R for Data Science: abbreviation RDS.

• 資料科學與R語言 by 曾意儒: abbreviation 曾意儒.

• R Markdown: the Definite Guide: abbreviation RMG.

2.2 What is R? What is RStudio?

R: programming language

• Base: https://www.r-project.org/

• CRAN, Comprehensive R Archive Network

  The CDN, Content Delivery Network for R.

  • https://cloud.r-project.org/： check Packages on the left.

RStudio

Integrated Development Environment (IDE) for R

R-bloggers

https://www.r-bloggers.com/

2.3 RStudio environment

• RDS-6

Editor

Two ways of keeping your script

Script: a collection of code lines

In this course, to save your script we will:

• mainly use R Markdown/R Notebook: .Rmd file

• sometimes, R Script: .R file

2.4 R Markdown

• Front matter

  • Setup of the document layout
  • Use YAML language

• Code chunk

  • Where the code for execution

• Text area

  • Take Markdown format