[Rd] row.names != rownames for data.frame?
Prof Brian Ripley
ripley at stats.ox.ac.uk
Tue May 2 09:51:22 CEST 2006
On Mon, 1 May 2006, Seth Falcon wrote:
> With a recent R 2.4 I notice the following:
> df <- data.frame(x=1:2)
>  "1" "2"
>  1 2
> This seems related to recent changes in the internal storage format of
> the row names data for data frames.
> The man page for rownames says:
> For a data frame, 'rownames' and 'colnames' are equivalent to
> 'row.names' and 'names' respectively.
> A number of Bioconductor packages seem to be relying on this.
Interesting: nothing on CRAN did. Those are `equivalent' but not
identical, but let's make them identical again.
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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