Excellent - the "as.data.frame" trick was just what I needed! Many thanks,
Nick ________________________________________ From: baptiste auguie [baptiste.aug...@googlemail.com] Sent: 14 September 2009 17:48 To: Masca, N. Cc: r-h...@stat.math.ethz.ch Subject: Re: [R] Which "apply" function to use? Hi, try this, rowMeans(as.data.frame(Coefs)) # or apply(as.data.frame(Coefs), 1, mean) HTH, baptiste 2009/9/14 Masca, N. <nm...@leicester.ac.uk<mailto:nm...@leicester.ac.uk>> Dear All, I have a problem which *should* be pretty straightforward to resolve - but I can't work out how! I have a list of 3 coefficient estimates for 4 different datasets: Coefs<-list(c(1,0.6,0.5),c(0.98,0.65,0.4),c(1.05,0.55,0.45),c(0.99,0.50,0.47)) All I want to do is take the sum (or mean) of each coefficient across the 4 datasets. I can do this using a "for" loop, but it gets very messy - as I need to do this several times I was hoping someone might have a better solution using one of the "apply" functions. Any ideas? Many thanks for any help you can provide. Cheers, Nick ______________________________________________ R-help@r-project.org<mailto: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. -- _____________________________ Baptiste Auguié School of Physics University of Exeter Stocker Road, Exeter, Devon, EX4 4QL, UK http://newton.ex.ac.uk/research/emag ______________________________________________ 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.
