分类：R语言数据框合并

2021
03-12

R语言数据框合并(merge)的几种方式小结

mergedataframes(inner,outer,left,right)数据>df1=data.frame(CustomerId=c(1:6),Product=c(rep("Toaster",3),rep("Radio",3)))>df1>CustomerIdProduct11Toaster22Toaster33Toaster44Radio55Radio66Radio>df2=data.frame(CustomerId=c(2,4,6),State=c(rep("Alabama",2),rep("Ohio",1)))>df>CustomerIdState12Alabama24Alab... 继续阅读 >