”):安装Biocductor的包加载R包library(包)或者require(包)Rstudio中包只需要安装一次,但每次启动都需要重新加载R包dplyr包的五个基础函数以R自带的iris数据框为例...test <- iris[c(1:2,51:52,101:102),]mutate(), 新增列mutate(test, new = Sepal.Length * Sepal.Width) #test数据框新增一列命名为...newselect(), 按列筛选(1)按列号筛选#筛选一列select(test,1)#筛选多列select(test,c(1,5))(2)按列名筛选#筛选一列select(test,Sepal.Length..., by = 'x')反连接:返回无法与y表匹配的x表的所记录anti_joinanti_join(x = test2, y = test1, by = 'x')简单合并bind_rows()函数需要两个表格列数相同...,而bind_cols()函数则需要两个数据框有相同的行数test1 <- data.frame(x = c(1,2,3,4), y = c(10,20,30,40))test2 <- data.frame