[R] sorting the data~

[Erik Iverson]

Are these the ranks of the data?

help.search("rank")



Manli Yan wrote:
>    id<-c(1,1,1,1,3,3,3,7,7,7,7,11,11,11........)
> 
> how to sort  this kind of data to
>    id:(1,1,1,1,2,2,2,3,3,3,3,4,4,4.........)
> 
> thanks~
> 
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