maris478 wrote > > Good afternoon, > I've encountered a little bit of a problem, would appreciate any help > here. > > I made a small vector consisting of ones and zeros. > Something like this x <- c(0,1,0,1,0,0,1,0), and all I need is to count > how many times "0" becomes "1". > Tried various, of what I thought, methods with built in functions. Didn't > get any further. > > Thank you very much. >
How about ... x <- c(0,1,0,1,0,0,0,0) sum(rle(x)$values) HTH Pete -- View this message in context: http://r.789695.n4.nabble.com/Counting-value-changes-tp4400267p4400348.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.