[R] Strange warning in summary.lm
Prof Brian Ripley
ripley at stats.ox.ac.uk
Thu Jul 19 14:13:36 CEST 2007
On Thu, 19 Jul 2007, Peter Dalgaard wrote:
> ONKELINX, Thierry wrote:
>> The problem also exists in a clean workspace. But I've found the
>> troublemaker. I had set options(OutDec = ","). Resetting this to
>> options(OutDec = ".") solved the problem.
> Oups. That sounds like there's a bug somewhere. Can you cook up a
> minimal example which shows the behaviour?
Any use of summary.lm will do it (e.g. example(lm)). The problem is in
x0 <- (xm[okP] == 0) != (as.numeric(Cf[okP]) == 0)
and yes, it looks like an infelicity to me.
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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