00:01
Why download so slow?
Setting CRAN mirror in China.
Tools -> Global Options -> Packages ->Management
Best CRAN: Hefei > Lanzhou > Beijing
A temporary solution:
options("repos" = c(CRAN="https://mirrors.ustc.edu.cn/CRAN/"))
The Hidden Secrets of information:
What difference between error, warning and message?
current
The Hidden Secrets of information:
What difference between error, warning and message?
next
No notes.
1
2
What difference between Project and Script
Project: A folder with a .Rproj file in it.
Script: A .R file.
3
Why download so slow?
Setting CRAN mirror in China.
Tools -> Global Options -> Packages ->Management
Best CRAN: Hefei > Lanzhou > Beijing
A temporary solution:
options("repos" = c(CRAN="https://mirrors.ustc.edu.cn/CRAN/"))
4
The Hidden Secrets of information:
What difference between error, warning and message?
5
Why the package failed to install?
Permission denied:
Just delete and restart rstudio for windows.
C++ error:
Install Rtools for windows.
6
Linux: the best system around world!
Using Linux Desktop Distribution
Ubuntu Desktop 18.04 and 20.04.
7
Not just R
GithubDesktop for git.
VS code for anything.
Typora and Notepad-- for markdown.
8
Learn More
9