I got tired of writing length(which()) so I define a useful function which I source in my .Rprofile:
count <- function( x ) length(which(x)) Then: count( x == 1 ) -- View this message in context: http://n4.nabble.com/counting-the-number-of-ones-in-a-vector-tp1570700p1578549.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.
