Try this: which(c(0, diff(x)) != 0)
On Sun, Jul 5, 2009 at 4:03 PM, Arun Kumar Saha <arun.kumar.s...@gmail.com>wrote: > Hi all, > > say, I have following vector : > > x <- c(rep(5, 5), rep(3,4), rep(5,10)) > > Now I want to get the index numbers where elements of that vector changes > i.e. in above example I want to get a vector with elements : 6, 10. Because > at that indices, element of original vector changes value. > > Is there any R function to do that? > > Regards, > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@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. > -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O [[alternative HTML version deleted]]
______________________________________________ R-help@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.
