On Wed, Sep 8, 2010 at 4:48 AM, Dimitri Shvorob <dimitri.shvo...@gmail.com> wrote: > > I was able to aggregate (with sqldf, at least), after saving and re-loading > the dataframe. My first guess was that h (and/or price?) now being a factor > - stringsAsFactors = T by default - made the difference, and I tried to > convert x$h to factor, but received an error.
Please provide enough of x to reproduce your problem. e.g. x <- head(x) dput(x) # repeat code and ensure it still shows problem -- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.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.