[Rd] cbind/rbind fail on matrixes containing lists (PR#6702)
Prof Brian Ripley
ripley at stats.ox.ac.uk
Sat Mar 27 09:03:05 CET 2004
On Fri, 26 Mar 2004, Thomas Lumley wrote:
> On Fri, 26 Mar 2004, Thomas Lumley wrote:
>
> >
> > Yep, bind.c:do_bind has
> >
> > switch(mode) {
> > case NILSXP:
> > case LGLSXP:
> > case INTSXP:
> > case REALSXP:
> > case CPLXSXP:
> > case STRSXP:
> > break;
> > default:
> > errorcall(call, "cannot create a matrix from these types");
> > }
> >
> >
> > Looks like a fairly simple fix to me.
>
> Not any more it doesn't. bind.c:AnswerType puts lists together with
> pairlists and who knows what else in its `other' class, so a bit more
> thought and coding is needed.
>
> It should be fairly straightforward, but it's not a localised change.
That's not the main problem area: the actual cbind code does not handle
vector lists. I've treated it as a documentation fix / enhancement
request.
Brian
--
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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