[R] alternative to rep

[Dirk Eddelbuettel]

> given: x<-c(2,5,4)
> If I "expand" x three times, then I will get 2,2,2,5,5,5,4,4,4.  In other 
> words, I want to keep the original ordering (2,5,4) but duplicate each of 
> the original entries three times.

> rep(c(2,5,4),rep(3,3))
[1] 2 2 2 5 5 5 4 4 4

Dirk

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