R language learning notes

introduction

Hello everyone , Let's introduce ourselves first , I am a giant in Chengdu 985 Mathematics major, statistical direction , Because this semester we will study the course of time series analysis , use R Related functions of language , This is my first contact R La , There may also be omissions , So I hope I can share some of what I have learned with you in the process of learning. At the same time, I also welcome you to communicate with me and make progress together ！！！！

All right. , Now let's start my first note update ！！

Chap 1   First time to know R Language

1. 1. R Download and install language

R Language is a free statistical data analysis software , download R If so, we can log in to R Go to the official website of , Enter directly in the web address of the browser r-project.org Go to this official website and you can download it ！（ Because it's the Internet , So when entering the website, it may be a bit slow ）

After entering the website, it is this page

 

The first paragraph is mainly about R It's a free software , We need to enter a mirror （ I think it's just a emm Things like servers ） Go inside to download R Software , Click on the top CRAN mirror The following screen will pop up

 

R There are different download addresses for different countries , We pull down the menu to find China

 

There are many download websites in it , Just click the first Tsinghua website , Although sometimes you may lose your card （ It doesn't mean that Tsinghua website is bad, haha ）, If you are too laggy, you can also click the website of Lanzhou University to download .

 

After the above interface pops up, we choose the corresponding system of our computer , My computer is windows System, so I took it windows Demonstrate the system , Click base（ If you download it for the first time ）

 

Finally, click the content below , It's for 64 Bit and 32 All computers have corresponding versions , Then you can download

After downloading, we check the corresponding installation options according to our own needs , Then click next all the time to complete the installation

 

Finally, after installation, enter R The interface of is like the following

 

All right. , I'll share my notes here first , See you next time , Thank you for reading , Welcome to leave messages and communicate with me ！！！