Hi Amor, I think you forgot to include the individual ID. ?aggregate cheers milton brazil=toronto
On Mon, Jun 8, 2009 at 8:11 AM, amor Gandhi <amorigan...@yahoo.de> wrote: > Hi, > > I have gote the following data > > x1 <- c(rep(1,6),rep(4,7),rep(6,10)) > x2 <- rnorm(length(x1),6,1) > data <- data.frame(x1,x2) > > and I would like to compute the mean of the x2 for each individual of x1, > i. e. x1=1,4 and 6? > > Thank you very much in advance, > > Amori > > > > [[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<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.
