Does anybody know a way to determine the longest run of a number in a vector of numbers? For example if I have the following numbers: 0 0 1 1 1 1 0 1 1 0 0 0 1 1; how can I determine that the longest run of 1's = 4 and longest run of 0's = 3? Thanks, Mark
Determine longest run of number
4 messages · Mark Del Cerro, R. Michael Weylandt, arun
I believe you're looking for the rle() function. Cheers, Michael On Fri, Nov 2, 2012 at 9:20 PM, Mark Del Cerro
<Mark.DelCerro at powerint.com> wrote:
Does anybody know a way to determine the longest run of a number in a vector of numbers? For example if I have the following numbers: 0 0 1 1 1 1 0 1 1 0 0 0 1 1; how can I determine that the longest run of 1's = 4 and longest run of 0's = 3? Thanks, Mark
______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Hi Michael, Thanks for the response -- that's exactly what I was looking for. Thanks, Mark -----Original Message----- From: R. Michael Weylandt [mailto:michael.weylandt at gmail.com] Sent: Friday, November 02, 2012 3:02 PM To: Mark Del Cerro Cc: r-help at r-project.org Subject: Re: [R] Determine longest run of number I believe you're looking for the rle() function. Cheers, Michael On Fri, Nov 2, 2012 at 9:20 PM, Mark Del Cerro
<Mark.DelCerro at powerint.com> wrote:
Does anybody know a way to determine the longest run of a number in a vector of numbers? For example if I have the following numbers: 0 0 1 1 1 1 0 1 1 0 0 0 1
1; how can I determine that the longest run of 1's = 4 and longest run
of 0's = 3? Thanks, Mark
______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
HI, Try this: vec1<-c(0,0,1,1,1,1,0,1,1,0,0,0,1,1) tapply(rle(vec1)$lengths,rle(vec1)$values,FUN=max) #0 1 #3 4 A.K. ----- Original Message ----- From: Mark Del Cerro <Mark.DelCerro at powerint.com> To: r-help at r-project.org Cc: Sent: Friday, November 2, 2012 5:20 PM Subject: [R] Determine longest run of number Does anybody know a way to determine the longest run of a number in a vector of numbers? For example if I have the following numbers: 0 0 1 1 1 1 0 1 1 0 0 0 1 1; how can I determine that the longest run of 1's = 4 and longest run of 0's = 3? Thanks, Mark ______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.