en/2008/01/r-doc-using-r-for-data-analysis-and-graphics/

I finished reading this document just now. In fact, it seems to be the first R document I have ever finished reading:
[…] “Using R for Data Analysis and Graphics - Introduction, Examples and …

https://yihui.org/en/2008/01/r-doc-using-r-for-data-analysis-and-graphics/