Cheat sheets & quick reference for R:
http://devcheatsheet.com/tag/r/?page=1
更多有用的cheat sheets请看:
http://devcheatsheet.com/
https://m.sciencenet.cn/blog-352360-346455.html
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nine "mark-up" languages that can be used to "Sweave" together data, code, and r下一篇:
设置row.names = FALSE,当你在R中写出数据时