排序减少和增加的orderby

library(plyr)
mydf[with(mydf, order(myvariable, desc(myvariable2)), ]

# Or, a little less typing:
arrange(mydf, myvariable, desc(myvariable2))

快速解决方法:

 mydf[ order(mydf$myvariable,-mydf$myvariable2,decreasing=F), ]

对于因子、字符串等:

 mydf[ order(mydf$myvariable,-xtfrm(mydf$myvariable2),decreasing=F), ]

library(Deducer)
sort(mtcars,by = ~ cyl - mpg)