Study regular expressions via ?regex or any of the many websites you can find with a search engine. With no special characters, your search pattern matches anywhere in the string. Start your study by learning about the ^ and $ characters.
On September 12, 2018 4:53:09 AM PDT, Christofer Bogaso <bogaso.christo...@gmail.com> wrote: >Hi, > >In the list.files() function, there is an argument 'pattern' to locate >the >desired files. However I failed to see if I can manage to fetch those >files >that having an exact match. > >For example, if there are 2 files that contain the expression 'File' >and >'Second_File', then I should get the 1st one. However R is returning >both >the files. > >Any pointer on how to achieve that would be helpful. Thanks, > > [[alternative HTML version deleted]] > >______________________________________________ >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. -- Sent from my phone. Please excuse my brevity. ______________________________________________ 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.
