[R] split array into groups by value

[Dimitris Rizopoulos]

One approach is:

l <- c(1,1,1,1, 0,0,0,0,0, 1,1,1,1,1,1)

r <- rle(l)$lengths
split(l, rep(seq_along(r), r))


I hope it helps.

Best,
Dimitris


On 3/6/2012 3:53 AM, pavlo wrote:
> I have an array
> l<- c(1,1,1,1, 0,0,0,0,0, 1,1,1,1,1,1)
>
> I would like to get a rugged array
> [[1]] 1,1,1,1
> [[2]] 0,0,0,0,0
> [[3]] 1,1,1,1,1,1
>
> catching every group of contiguous repeated values.  Any help would be
> greatly appreciated!
> -Pavel
>
>
>
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-- 
Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus University Medical Center

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