[R] "each" argument in rep (Bug?)

[Peter Alspach]

Tena koe 

?rep states that each is a non-negative integer.  Note, integer not a vector.

Thus, rep(1:3, each=c(2,1,2)) only uses the first element in each and is equivalent to rep(1:3, each=2).  One could argue there should be a warning (as there is for some functions is similar situations), but I don't see that it is a bug or undocumented (although the documentation is subtle).

HTH ....

Peter Alspach.

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of T.D. Rudolph
> Sent: Wednesday, 2 February 2011 11:02 a.m.
> To: r-help at r-project.org
> Subject: [R] "each" argument in rep (Bug?)
> 
> 
> I have a vector of unique elements that I want to replicate a variable
> number
> of times depending on the element (lengths all > 800).  However I
> noticed
> that the resulting length was not the sum of the each argument.  The
> following example demonstrates this.
> 
> I am confused as to why this works:
> 
> rep(1:4, c(2,1,2,1))
> [1] 1 1 2 3 3 4
> 
> but this doesn't:
> 
> rep(1:3, each=c(2,1,2))
> [1] 1 1 2 2 3 3
> 
> This does not appear to be consistent with the description provided in
> ?rep....
> Is this supposed to be happening?
> --
> View this message in context: http://r.789695.n4.nabble.com/each-
> argument-in-rep-Bug-tp3253050p3253050.html
> Sent from the R help mailing list archive at Nabble.com.
> 
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> and provide commented, minimal, self-contained, reproducible code.

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