Hi, I have a dataframe with a rather complicated descriptive column (V9):
> test3[(1:3), ] V1 V4 V5 10 1 4559 7173 17 1 58954 59871 19 1 357522 358458 V9 10 ID=NM_182905.1;Name=NM_182905;Alias=FLJ00038;Note=hypothetical protein LOC375690 17 ID=NM_001005484;Alias=OR4F5;Note=olfactory receptor%2C family 4%2C subfamily F 19 ID=NM_001005224.1;Name=NM_001005224;Alias=OR4F3;Note=olfactory receptor%2C family 4%2C subfamily F > I have problems to extract two strings from this column (V9). First I need the "ID=..." and second I need the "Alias=..." both in seperate columns. I tried it with substr() but due to the different length and no wildcard allowance it did not work. Would be glad for any help! Thanks in advance. -- View this message in context: http://r.789695.n4.nabble.com/Substring-of-a-character-column-tp2313210p2313210.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.