- RStudio介绍超详细的教程:https://www.jianshu.com/p/132919ca2ca9
- 前辈的心得:https://blog.csdn.net/kMD8d5R/article/details/78967610
- 管道:%>%
- grep(pattern = "an", x, value = T) / grep(pattern = "", replacement = "**", x)
- date : library(lubridate), ymd(), ydm(), mdy(), myd(), dmy(),
dym(), yq() in package lubridate - rep(1: n, each = 2, times = 2) 循环前面的数列,并且可以指定长度和循环次数
- parallel :https://blog.csdn.net/sinat_26917383/article/details/52719232 (下载没成功???)
- 自定义函数 average <- function(x)
- data import and export : R native formats / CSV files / EXCEL / ODBC databases / SAS databases