R help - Oct 2010 - Implementing R's recycling rule

Hi

I want to use R's recycling rule. At the moment I am using the following:


x <- c(1, 2, 3)
n <- 10
## so using the recycling rules, I would like to get from FUN(x, n)==1
## I am doing:
xRecycled <- rep(x, length.out=n)[n]

This works, but it seems to me that I am missing something really basic here
- is there  more straightforward way of doing this?

Cheers,
Rainer

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> x <- c(1, 2, 3)
> n <- 10
> ## so using the recycling rules, I would like to get from FUN(x, n)==1
> ## I am doing:
> xRecycled <- rep(x, length.out=n)[n]
> 
> This works, but it seems to me that I am missing something really basic 
here
> - is there  more straightforward way of doing this?
x[n %% length(x)] gives you the same answer as rep(x, length.out=n)[n], 
without having to create the longer vector.

Regards,
Richie.

Mathematical Sciences Unit
HSL
4D Pie Charts



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