mydata[ , 1:8]
Or let's say you only one the 4th, 6th and 8th columns mydata[ , c(4,6,8)] and so on. There are several good intro's available on the R website that will walk you through this type of thing. If you're a recovering SAS or SPSS user this paper may be of real help www.et.bs.ehu.es/~etptupaf/pub/R/RforSAS&SPSSusers.pdf John Kane Kingston ON Canada > -----Original Message----- > From: sachin.abeyward...@gmail.com > Sent: Sat, 11 Aug 2012 21:59:59 +1000 > To: r-help@r-project.org > Subject: [R] choosing multiple columns > > Hi all, > > I have a data frame that has the columns OFB1, OFB2, OFB3,... OFB10. > > How do I select the first 8 columns efficiently without typing each and > every one of them. i.e. I want something like: > > a<-data.frame(initial_data$OFB1-10) #i know this is wrong, what would be > the correct syntax? > > Thanks, > Sachin > > [[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. ____________________________________________________________ FREE 3D EARTH SCREENSAVER - Watch the Earth right on your desktop! ______________________________________________ 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.
