[R] summarize logical string

[Dimitris Rizopoulos]

you need rle(), e.g.,

x <- c(0, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0)
rle(x)$lengths


I hope it helps.

Best,
Dimitris


dbajic at cnb.csic.es wrote:
> Hello everyone,
> 
> I am a newbie, working on a gene clustering problem, and I have problems
> in summarizing a logical string into number of repeats of each value. In
> other words, how could I obtain from
> 
> 0 1 1 1 0 0 0 0 1 1 0 1 0 0
> 
> this: 1 3 4 2 1 1 2
> 
> so a string that gives me the number of repeated values, no matter zeros
> or ones.
> 
> I've been diving in the manuals and the mailing list but, nothing
> interesting, apparently... I would be very grateful if anyone could give
> me some advice.
> 
> Djordje Bajic
> Logic of Genomic Systems Lab
> Centro Nacional De Biotecnología - CSIC
> Cantoblanco, Madrid, España
> 
> ______________________________________________
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> 

-- 
Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus University Medical Center

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