R language installation tutorial | graphic introduction is super detailed

R Language installation tutorial | Graphic introduction super detailed

1 R Introduction to language

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1.1 R The history of language

R Language comes from S Language , yes S A variation of language .S Language by Rick Becker, John Chambers Et al. Developed in Bell Laboratories , The famous C Language 、Unix The system is also developed by Bell Laboratories .R It's a free software ,GPL to grant authorization , Originally from New Zealand Auckland University's Ross Ihaka and Robert Gentleman On 1997 Released in , R Realized and S Language has basically the same functions and statistical functions . Now by R Core team development , But users all over the world can contribute packages .

1.2 R Characteristics of language

• The free software , free 、 Open source , Support the main popular systems

• Is this feature not enough ！！！！（ What kind of bike do you want (￣△￣;)）

1.3 Recommended books

I haven't read any 、 （ ￣ー￣）

1. Hadley Wickham and Garrett Grolemund(2017) “R for Data Science” https://r4ds.had.co.nz/
2. Hadley Wickham(2019) “Advanced R,” 2nd ed. https://adv-r.hadley.nz/
3. Hadley Wickham(2016) ggplot2 Elegant Graphics for Data Analysis, 2nd ed. https://ggplot2-book.org/

3 Download and install R

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This time with mac os(m1) For example , open

https://www.r-project.org/

3.1 Choose a new version R

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3.2 Select Tsinghua image

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3.3 Select different versions according to different operating systems R, Here I choose mac os

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3.4 because mac There are different chip problems ,m1 and intel, You can choose different versions according to the chip .

Note! Let me remind you , If you need to use it often Bioconductor If the bag on the is analyzed , Even if you are M1 Users of , I also recommend you choose intel Version of R

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3.5 Finally, all the way to the end , Just finish the installation ~

4 Download and install RStudio

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installed R Language can be installed RStudio 了 ,Rstudio yes R One of the IDE, Powerful graphics , Can be used more conveniently R, R It's like the body of a camera ,Rstudio Just like the lens of a camera , You can buy expensive and cheap lenses , But they all need to be used on the camera body .

4.1 open Rstudio Official website

https://www.rstudio.com/products/rstudio/,

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4.2 download Rstudio Desktop, Certainly free Edition

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4.3 Select the corresponding version corresponding to your own operating system , So here I'm going to choose mac edition

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4.4 After downloading , Go all the way to the end

5 R studio Interface is introduced

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• A: Scripting area . Written in this area R Code can be deleted 、 modify . Click on “run”, Run a single command , Click on “source”, Run all the edited commands . Common shortcut key ： command + return（ Interested in knowing all shortcut keys can be used option + shift + k see ）
• B: Data display area . Displayed in the R The historical data entered inside .
• C: Command run area . The results and errors of the code will be displayed in this area .
• D: Drawing and help area .

6 Foundation setup

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Don't rush to write code yet , First, make some basic settings

6.1 Click on Tools -> Global Options

(Mac Shortcut key command + , )

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6.2 working directory

adopt Browse Choose the default working path , But I still recommend you to pass setwd() Or new project To set the working directory

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6.3 Set the theme

adopt font size and theme Just set the font size and theme you like , Turnip vegetables , His taste (O_o)(o_O)

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6.4 Set up the mirror

adopt change Choose the image address closest to you

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Finally, I wish you all a speedy exit !~

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Click to see , The official account replied rstudio Access to all Rstudio Shortcut key pdf edition