Hi I have this vector of strings.
MyData <- c("Test1","Test2","I(Test1^2)","I(Test2^3)","I(Test1.Test2^2)") where I want to extract only the text after "I(" and before "^" so that the string returned only contain c("Test1","Test2","Test1.Test2") I am not very skilled in the use of matching patterns so bare with me but I belive I should use gsub('^.\\(', "",MyData) for removing the "I(" and gsub("\\^.+", '',MyData) for the end. but theres got to be a more elegant way that does the trick in one go. So I would appriciate I anyone could give me some advice. Thanks Tom -- View this message in context: http://www.nabble.com/Matching-Problem-tp15430660p15430660.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.