Hi, Next time give folks code to produce a toy sample of your problem DF <-data.frame(ID=rep(1:5,each=3),Data=rnorm(15),Stuff=seq(1:15)) DF ID Data Stuff 1 1 2.0628225 1 2 1 0.6599165 2 3 1 0.5672595 3 4 2 -0.5308823 4 5 2 -0.5358471 5 6 2 -0.1414992 6 7 3 -0.1679643 7 8 3 0.9220922 8 9 3 0.8863018 9 10 4 -0.7255916 10 11 4 -1.2446753 11 12 4 0.8165567 12 13 5 0.0925008 13 14 5 -0.8534803 14 15 5 -0.6535016 15
# now I want to select rows where ID = 2 or 5 # Assign DF2 to those elements of DF where the ID variable=2 or 5 DF2 <- DF[which(DF$ID==2 | DF$ID==5), ] DF2 ID Data Stuff 4 2 -0.5308823 4 5 2 -0.5358471 5 6 2 -0.1414992 6 13 5 0.0925008 13 14 5 -0.8534803 14 15 5 -0.6535016 15 On Tue, Dec 14, 2010 at 10:10 PM, Hrithik R <rit...@yahoo.com> wrote: > Hi, > if I have a dataframe such that > > ID Time Earn > 1 1 10 > 1 2 50 > 1 3 68 > 2 1 40 > 2 2 78 > 2 4 88 > 3 1 50 > 3 2 60 > 3 3 98 > 4 1 33 > 4 2 48 > 4 4 58 > ..... > .... > ..... > > Now if I have to select the all the rows from the data frame which does not > include rows with certain IDs, say for example (prime) ID == 2 & 3, how do > I do > it > > > Thanks > > Rith > > > > [[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. > > [[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.
