Try this:

with(expand.grid(Array1, combn(Array2, 2, paste, collapse = '.')[-3]),
paste(Var1, Var2, sep = '.'))

On Tue, Aug 31, 2010 at 10:16 AM, Maas James Dr (MED) <J.Maas@uea.ac.uk>wrote:

> If possible I would like to combine two different character arrays in
> combinations
>
> Array1 <- c("height","weight","age","sex")
>
> Array2 <- c("trt0","trt1","trt2")
>
> I would like to combine these two character vectors to end up with such ...
>
> Array3
>
> "height.trt0.trt1"
> "height.trt0.trt2"
> "weight.trt0.trt1"
> "weight.trt0.trt2"
> "age.trt0.trt1"
> "age.trt0.trt2"
> "sex.trt0.trt1"
> "sex.trt0.trt2"
>
> I'm trying combinations of the "combinations" and "paste" functions, but no
> luck yet!
> Any suggestions about most efficient approach most welcome.
> Thanks
>
> Jim
>
> ===============================
> Dr. Jim Maas
> University of East Anglia
>
>
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>
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>



-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O

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