Hhhhmmmmmmhhhm, but is that not the same as mean(as.matrix(x))
????? Yours sincerely / Med venlig hilsen Frede Aakmann Tøgersen Specialist, M.Sc., Ph.D. Plant Performance & Modeling Technology & Service Solutions T +45 9730 5135 M +45 2547 6050 fr...@vestas.com http://www.vestas.com Company reg. name: Vestas Wind Systems A/S This e-mail is subject to our e-mail disclaimer statement. Please refer to www.vestas.com/legal/notice If you have received this e-mail in error please contact the sender. > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] > On Behalf Of Sarah Goslee > Sent: 21. maj 2014 21:11 > To: Kate Ignatius; r-help > Subject: Re: [R] Mean of colMeans > > That would be because col is a function in base R, and thus a poor > choice of names for user objects. Nonetheless, it worked when I ran > it, but you didn't provide reproducible example so who knows. > > R> set.seed(1) > R> x <- data.frame(matrix(runif(150), ncol=10)) > R> # col is a function, so not a good name > R> col <- colMeans(x) > R> mean(col) > [1] 0.5119 > > It's polite to include the list on your reply. > > Sarah > > On Wed, May 21, 2014 at 2:50 PM, Kate Ignatius <kate.ignat...@gmail.com> > wrote: > > That didn't work: gave me the error = > > > > [1] NA > > Warning message: > > In mean.default(col) : argument is not numeric or logical: returning NA > > > > But writing it like: mean(colMeans(x, na.rm = TRUE, dims = 1)), worked > > > > Thanks! > > > > On Wed, May 21, 2014 at 2:31 PM, Sarah Goslee > <sarah.gos...@gmail.com> wrote: > >> Is > >> > >> mean(col) > >> > >> not what you're looking for? > >> > >> Sarah > >> > >> On Wed, May 21, 2014 at 2:26 PM, Kate Ignatius > <kate.ignat...@gmail.com> wrote: > >>> Hi All, > >>> > >>> I've successfully gotten out the colMeans for 60 columns using: > >>> > >>> col <- colMeans(x, na.rm = TRUE, dims = 1) > >>> > >>> My next question is: is there a way of getting a mean of all the > >>> column means (ie a mean of a mean)? > >>> > >>> Thanks! > >>> > > -- > Sarah Goslee > http://www.functionaldiversity.org > > ______________________________________________ > 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. ______________________________________________ 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.
