Alina I suspect you want match (or %in%):
?match HTH .... Peter Alspach > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Alina Sheyman > Sent: Tuesday, 18 November 2008 9:04 a.m. > To: r-help@r-project.org > Subject: [R] looking for matches > > My question is probably pretty basic, but since I'm really > new to R, here it goes .... > > I have two separate data frames that include class names and > various other information on classes. I'm trying to create a > match based on class names and if a match exists to create a > third data frame with the class name. > > I was hoping to accomplish this with sapply, but I can't > figure out if I can embed an "if statement" with sapply. Does > anyone know if that's a legit way to accomplish what I am > trying to do or is there some better way? > > thank you, > > Alina Sheyman > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. > The contents of this e-mail are privileged and/or confidential to the named recipient and are not to be used by any other person and/or organisation. If you have received this e-mail in error, please notify the sender and delete all material pertaining to this e-mail. ______________________________________________ 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.