log.raw.data <- log(raw.data[,2:10]) I think but I don't understand the "Data has the first row for variable name" comment
--- On Wed, 7/29/09, sandsky <realst...@hotmail.com> wrote: > From: sandsky <realst...@hotmail.com> > Subject: [R] how to skip a numeric column for averaging other columns? > To: r-help@r-project.org > Received: Wednesday, July 29, 2009, 3:01 PM > > Data has the first row for variable name and the first > column for sample > name. I want to take "Log" for all data, but how to compute > without the > first column for sample name. > > That is, > > column 1: sample ID > column 2-10: data > > I want to find an average on each column (2-10) > > > log.raw_data=log(raw_data,base=2) > Error in Math.data.frame(list(sample_id = c(1L, 2L, 3L, 4L, > 5L, 6L, 7L, : > non-numeric variable in data frame: sample_id > > Thank you in advance, > > Jin > -- > View this message in context: > http://www.nabble.com/how-to-skip-a-numeric-column-for-averaging-other-columns--tp24723210p24723210.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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. > __________________________________________________________________ Ask a question on any topic and get answers from real people. Go to Yahoo! Answers and share what yo ______________________________________________ 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.