Hi, One way would be,
vec[ cumsum(!vec)==0 ] HTH, baptiste 2009/11/9 Grzes <gregori...@gmail.com>: > > Hi ! > I have a vector: > vec= TRUE TRUE TRUE TRUE FALSE FALSE FALSE FALSE TRUE TRUE FALSE > and I'm looking for a method which let me get only the first values equal > TRUE from this vector. It means that I want to get a vector: > vec_out = TRUE TRUE TRUE TRUE > > or posictions values = TRUE: vec_out = 1,2,3,4 > -- > View this message in context: > http://old.nabble.com/Find-the-first-values-in-vector-tp26271555p26271555.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. > ______________________________________________ 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.