I would like to use grep and gsub to manipulate a vector to make the names used consistent, i.e. reduce a level or two.
However, here is what I found when I attempted to use grep and gsub: > tmp_test<-c("House 1 Plot Plus +100","House 2 Plot Plus +100","House 3 Plot > Plus -100","House 4 Plot Plus -100","House 1 Plus +100","House 2 Plus > +100","House 3 Plus -100","House 4 Plus -100") > gsub(tmp_test[2], tmp_test[1], tmp_test) [1] "House 1 Plot Plus +100" "House 2 Plot Plus +100" "House 3 Plot Plus -100" "House 4 Plot Plus -100" "House 1 Plus +100" "House 2 Plus +100" [7] "House 3 Plus -100" "House 4 Plus -100" > grep(tmp_test[1],tmp_test) integer(0) However, > gsub(tmp_test[3], tmp_test[1], tmp_test) [1] "House 1 Plot Plus +100" "House 2 Plot Plus +100" "House 1 Plot Plus +100" "House 4 Plot Plus -100" "House 1 Plus +100" "House 2 Plus +100" [7] "House 3 Plus -100" "House 4 Plus -100" Thanks for any feedback that can be provided. ______________________________________________ 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.