On Fri, Jul 25, 2008 at 9:49 AM, baptiste auguie <[EMAIL PROTECTED]> wrote: > Dear list, > > > I'm trying to use the reshape package to perform a merging operation on a > list of data.frames as illustrated below, > >> a <- 1:10 >> example <- list( data.frame(a=a, b=sin(a)), data.frame(a=a, b=cos(a)) ) >> >> melt(example, id = a)
You want: melt(example, id = "a") i.e. the id argument is a character or numeric vector specifying which variables to use as id variables. Your call would be equivalent to melt(example, id = 1:10) which clearly is incorrect for your example. Hadley -- http://had.co.nz/ ______________________________________________ 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.
