Try:
paste("x", as.vector(t(outer(1:4, 1:3, FUN=paste, sep=""))), sep="")
or
paste("x", apply(expand.grid(1:4, 1:3), 1, paste, collapse=""), sep="")
On Mon, May 19, 2008 at 4:40 PM, Philip Twumasi-Ankrah <
[EMAIL PROTECTED]> wrote:
> I am new to more radical programming in R. I am trying to write a nested
> 'for' loop to produce output that takes subscripts like:
>
> for i taking values 1,2,3,4,5 and
> j taking values 1,2,3
>
> I want to output for a computation using the combination values of i and j
> a value x like this;
>
> i j x
> 1 1 x11
> 1 2 x12
> 1 3 x13
> 2 1 x21
> 2 2 x22
> 2 3 x23
> 3 1 x31
> 3 2 x32
> 3 3 x33
> ........
> .......
>
> Need help urgently.
>
> Thanks.
>
> Philip
>
>
> A Smile costs Nothing
>
> But Rewards Everything
>
> Happiness is not perfected until it is shared
> -Jane Porter
>
>
>
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>
> ______________________________________________
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> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O
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