R help - May 2006 - count repetitions

bonjour,

i have a serie : x<-sample(c(0,1),50,T)
and i want to count the length of each repetition of 0 and of 1
(0011101110111100000 give 2313145)...
who have an idea ?

merci :-)

jean-pierre

Jean-Pierre GERBAL wrote:
> bonjour,
> 
> i have a serie : x<-sample(c(0,1),50,T)
> and i want to count the length of each repetition of 0 and of 1
> (0011101110111100000 give 2313145)...
> who have an idea ?
  rle(x)
> merci :-)
pas de prob.

Barry

See ?rle  i.e.:

x=c(0,0,1,1,1,0,1,1,1,0,1,1,1,1,0,0,0,0,0)
rle(x)
Run Length Encoding
  lengths: int [1:7] 2 3 1 3 1 4 5
  values : num [1:7] 0 1 0 1 0 1 0

I hope this helps

Francisco
>From: Jean-Pierre GERBAL <jeanpierre.gerbal at free.fr>
>To: R-help at stat.math.ethz.ch
>Subject: [R] count repetitions
>Date: Thu, 11 May 2006 17:42:55 +0200
>
>bonjour,
>
>i have a serie : x<-sample(c(0,1),50,T)
>and i want to count the length of each repetition of 0 and of 1
>(0011101110111100000 give 2313145)...
>who have an idea ?
>
>merci :-)
>
>jean-pierre
>
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