Dear Mat, You can use grepl() to select based on are regular expression.
subset(data3, grepl("\\(.*\\)", ORDER)) Best regards, ir. Thierry Onkelinx Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance Kliniekstraat 25 1070 Anderlecht Belgium To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of. ~ Sir Ronald Aylmer Fisher The plural of anecdote is not data. ~ Roger Brinner The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data. ~ John Tukey 2016-06-17 9:49 GMT+02:00 Matthias Weber <matthias.we...@fntsoftware.com>: > Hello togehter, > > i have short question, maybe anyone can help me. > > I have a data.frame like this one: > > NO ORDER > 1 1530 for Mr. Muller (10.0 -> 11.2) > 2 1799 for Mr Giulani > 3 1888 for Mr. Marius (11.2 -> 12) > > I need a solution, which only contains the values in brackets. The result > should look like the following: > > NO ORDER > 1 1530 for Mr. Muller (10.0 -> 11.2) > 2 1888 for Mr. Marius (11.2 -> 12) > > I tried it with the following code, but that doesn't work. > > data4.1<-data3[data3$ORDER%in% "[(]*->*[)]",] > > maybe anyone can help me. > > Thank you. > > Best regards > > Mat > > [[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. > [[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.