On Thu, Feb 7, 2008 at 7:57 PM, Gavin Simpson <[EMAIL PROTECTED]> wrote: > > On Thu, 2008-02-07 at 19:32 +0900, Tribo Laboy wrote: > > Hello, > > > > I was wondering if there was an easy way to put information about the > > measurement units used for each column of a data frame ... > > > > Thanks for any pointers, > > > > TL > > You could add attributes: > > dummy <- data.frame(x = rnorm(10), y = rbeta(10, 2, 5), z = rlnorm(10)) > dummy > > attr(dummy, "units") <- c("m s-2", "Kg", "m") > dummy > attributes(dummy) > > G > -- > %~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~% > Dr. Gavin Simpson [t] +44 (0)20 7679 0522 > ECRC, UCL Geography, [f] +44 (0)20 7679 0565 > Pearson Building, [e] gavin.simpsonATNOSPAMucl.ac.uk > Gower Street, London [w] http://www.ucl.ac.uk/~ucfagls/ > UK. WC1E 6BT. [w] http://www.freshwaters.org.uk > %~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~% > >
Hi Gavin, Thanks. That works for me just great. Regrads, TL ______________________________________________ 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.