Help with "split".

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Help with "split".

rkevinburton
I read in the documentation for split:

‘split’ divides the data in the vector ‘x’ into the groups defined by ‘f’.

But I am still unclear as to its function. Take for example:

x <- 1:4
split(x, c(0,1))
$`0`
[1] 1 3

$`1`
[1] 2 4

I am not clear on how this result is reached.

Thank you.

Kevin

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Re: Help with "split".

Peter Dalgaard
[hidden email] wrote:

> I read in the documentation for split:
>
> ‘split’ divides the data in the vector ‘x’ into the groups defined by ‘f’.
>
> But I am still unclear as to its function. Take for example:
>
> x <- 1:4
> split(x, c(0,1))
> $`0`
> [1] 1 3
>
> $`1`
> [1] 2 4
>
> I am not clear on how this result is reached.

Usual recycling rule: Same result as split(x, c(0,1,0,1)).



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   c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
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~~~~~~~~~~ - ([hidden email])              FAX: (+45) 35327907

______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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