Thank you Sarah.I'm glad it was a quick fix: On Fri, Feb 5, 2010 at 8:50 AM, Sarah Goslee <> wrote:
> You're not only removing a row of data, you are invoking the default > behavior of subset, which is to collapse the subsetted result to the > smallest possible type, which in this case is a vector. Vectors have > no rows, and thus no row names. > > You need the drop=FALSE argument, as in > ENV <- ENV[-1, , drop=FALSE] > > Sarah > > On Fri, Feb 5, 2010 at 9:44 AM, Euan Reavie <euan.rea...@gmail.com> wrote: > > I find this odd because it doesn't appear to happen in larger datasets. I > > have the following data set ENV with the first column set as row.names: > > > >> ENV > > TPlog > > 001S29H 0.601 > > 002S42H 0.602 > > 003S43S 0.779 > > 004S43S 0.702 > > 005S51H 0.978 > > 006S52P 2.718 > > > > If I apply > ENV <- ENV[-1,] # remove first row of data (right?) > > ...ENV comes back as: > > > > [1] 0.602 0.779 0.702 0.978 2.718 > > > > So I am losing the row name info. I also notice that, if the first two > > values in the TPlog column are the same, both values are removed! What's > > going on, and why does this same thing not happen in more complex > datasets > > with more than one column of values? > > > > Many thanks - Euan. > > > -- > Sarah Goslee > http://www.functionaldiversity.org > -- * The opinions expressed in this message do, in fact, represent the opinions of my employers, their families, and everybody within a 10 mile radius. [[alternative HTML version deleted]] ______________________________________________ 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.
