R語言 數據集取子集

保留變量：sql >newdata<-leadership[,c(6:10)]                       或者函數 > myvars<-c("item1","item2","item3","item4","item5") > newdata<-leadership[myvars] 丟棄變量：code > myvars<-names(leadership)%in%c("item3"

>>阅读原文<<