Try subset(). Andrew
On Wed, May 04, 2011 at 02:01:44AM -0700, tornanddesperate wrote: > Hi everybody > > I couldn't find the solution to what must be quite a simple problem. Maybe > you can help? > > treatment session period stage wage_accepted market > 1 1 1 1 1 25 public > 2 1 1 1 1 19 privat > 3 1 1 1 1 15 public > 4 1 1 1 2 32 public > 5 1 1 1 2 13 privat > > >From this table, I'd like to choose only those values in the column > "wage_accepted" that have the value "public" in the column "market". How can > I do this? > > Is there a good general help site for R that would explain basic table > manipulations such as this? > > Thank you very much for your help > > > > -- > View this message in context: > http://r.789695.n4.nabble.com/select-value-from-a-column-depending-on-a-value-in-another-column-tp3494926p3494926.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. -- Andrew Robinson Program Manager, ACERA Department of Mathematics and Statistics Tel: +61-3-8344-6410 University of Melbourne, VIC 3010 Australia (prefer email) http://www.ms.unimelb.edu.au/~andrewpr Fax: +61-3-8344-4599 http://www.acera.unimelb.edu.au/ Forest Analytics with R (Springer, 2011) http://www.ms.unimelb.edu.au/FAwR/ Introduction to Scientific Programming and Simulation using R (CRC, 2009): http://www.ms.unimelb.edu.au/spuRs/ ______________________________________________ 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.