R取子集（dplyr方法）

首选用dplyr包

查看hr有哪些字段名

> names(hr)

[1] "satisfaction" "evaluation" "project" "monthlyhour" "serviceyear" "accident" "left" "promotion" "dept" "salary" "SG"

引入dplyr包

> library(dplyr)

“%>% select”

> hr_cor <- hr %>% select(satisfaction:promotion,SG)

检查hr_cor的字段

> names(hr_cor)

[1] "satisfaction" "evaluation" "project" "monthlyhour" "serviceyear" "accident" "left" "promotion" "SG"

R取子集（dplyr方法）

原文：http://www.cnblogs.com/yilingjian/p/7281169.html