[R] grepl

Hello, it is not clear to me, how to search if in a string there is a "." (full stop). Using: grepl(".",string) doesn't work because the full stop it is a metacharacter (it gives "TRUE" also if no full stop is in the character). I tried also to insert \. but it does not work. > grepl("\.",string

Re: [R] grepl

Thanks so much for your help, now I could solve the problem (using [.])! 2013/5/13 arun > You may also try: > grepl("[.]",c("ad.1","ads","ad.2")) > #[1] TRUE FALSE TRUE > A.K. > > > > - Original Message - > From: Fra