R help - Oct 2011 - Concecutive zeros and ones

Dear all,
I have  a data series (might be vector or matrix) which is composed only from
zeros and ones like the following example

0 0 0 1 1 0 1 0 0 1 1 1 1 0 0 0

I want to be able to return back the length of concecutive zeros and the length
of concecutive ones.

For that I want to have something like that returned:


zeros= [3 1 2 3];
ones=[2 1 4];

How I can do that simply in R?

I would like to thank you in advance for your help


B.R
Alex

	[[alternative HTML version deleted]]

Check function rle().


I hope it helps.

Best,
Dimitris



On 10/6/2011 9:18 AM, Alaios wrote:
> Dear all,
> I have  a data series (might be vector or matrix) which is composed only
from zeros and ones like the following example
>
> 0 0 0 1 1 0 1 0 0 1 1 1 1 0 0 0
>
> I want to be able to return back the length of concecutive zeros and the
length of concecutive ones.
>
> For that I want to have something like that returned:
>
>
> zeros= [3 1 2 3];
> ones=[2 1 4];
>
> How I can do that simply in R?
>
> I would like to thank you in advance for your help
>
>
> B.R
> Alex
>
> 	[[alternative HTML version deleted]]
>
>
>
>
> ______________________________________________
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> PLEASE do read the posting guide
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-- 
Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus University Medical Center

Address: PO Box 2040, 3000 CA Rotterdam, the Netherlands
Tel: +31/(0)10/7043478
Fax: +31/(0)10/7043014
Web: http://www.erasmusmc.nl/biostatistiek/