Wacek Kusnierczyk wrote: > 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) >>> >>> >>> > replace(large, which(large), small) >
in fact, this will do: replace(large, large, small) 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.
