Given a vector of booleans, chich() will return indices that are TRUE. Given a vector of indices, how can I get a vector of booleans?
My intent is to do logical operations on the output of grep(). Maybe there's a better way to do this? Thanks -Ed ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.