Milton Huang wrote: > Dear list members: > > I am looking for an elegant (or efficient) way to accomplish the following: > > take a large boolean vector and fill the TRUE values with the values from a > smaller boolean vector that has a length that is the number of TRUE values of > the large vector. > > Example: > > large<- c(FALSE, FALSE, FALSE, TRUE, FALSE, FALSE, TRUE, FALSE, FALSE, > FALSE, > TRUE, FALSE) > > small<- c(TRUE, FALSE, TRUE) > > desired output = c(FALSE, FALSE, FALSE, *TRUE*, FALSE, FALSE, *FALSE*, > FALSE, > FALSE, FALSE, *TRUE*, FALSE) > >
large[which(large)] = small # large[which(large)] = paste("*", small, "*", sep="") to see it's as you specify ?which vQ ______________________________________________ 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.