[Rd] Bug in parse(text = <long polynom>) (PR#7022)
Prof Brian Ripley
ripley at stats.ox.ac.uk
Fri Jun 25 10:48:43 CEST 2004
On Fri, 25 Jun 2004 maechler at stat.math.ethz.ch wrote:
> >>>>> "MM" == Martin Maechler <maechler at stat.math.ethz.ch>
> >>>>> on Fri, 25 Jun 2004 10:19:19 +0200 writes:
>
> >>>>> "PD" == Peter Dalgaard <p.dalgaard at biostat.ku.dk>
> >>>>> on 25 Jun 2004 09:32:48 +0200 writes:
>
> PD> But you're still requiring library(polynom) for
> PD> triggering the bug. If we are to be sure that it is not
> PD> a bug in that package but a bug in R, you need to
> PD> include the definition of at least polynomial() with the
> PD> instructions to reproduce the effect...
>
> MM> well, try this (without package polynom):
>
> >> parse(text="1 + x*(100 + x*(4950 + x*(161700 + x*(3921225
> ....
>
> and then I had the full length 2404 string which---I had
> "known in advance" (Murphy's law)--- has been thrown up
> before it got back to R-devel, actually by my mailer already.
>
> Now this should be easier to pass through:
>
> tt <- tempfile()
> download.file("ftp://ftp.stat.math.ethz.ch/U/maechler/R/longpoly.rda", tt)
> load(tt)
> zh # look at the long "polygon string"
FYI
load(url("ftp://ftp.stat.math.ethz.ch/U/maechler/R/longpoly.rda"))
is a neater way to do this. (Or use loadURL.)
--
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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