Dear R Helpers, My regex skills are beginner to intermediate and banging around the web has not resulted in a solution to the problem below so I hope that one of you who has mad skills can help me out.
I want to extract the stock ticker--AMT-- out of the string American Tower Corporation (REIT) (AMT) The presence of the other parenthetical text (REIT) makes this difficult. Please note that the string may or may not have a interfering set of characters such as the (REIT) so the solution needs to be generalizable to the last set of characters that are contained in parentheses in the larger string. So an example of a string without the interfering (REIT) would be Aetna Inc. (AET) Your assistance would be very much appreciated. --John Sparks ______________________________________________ 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.
