09 2015 档案

R语言中数据框的横向合并与纵向合并
摘要：#横向合并ID<-c(1,2,3,4)name<-c("Jim","Tony","Lisa","Tom")score<-c(89,22,78,78)student1<-data.frame(ID,name)student2<-data.frame(ID,score)total_student<-me... 阅读全文
posted @ 2015-09-30 10:10 yangk 阅读(12194) 评论(0) 推荐(0)