[Rd] Fortran routines from LINPACK in S+ but not R
Thu, 23 Aug 2001 08:54:31 -0400
Prof Brian Ripley wrote:
> On Thu, 23 Aug 2001 email@example.com wrote:
> > Dear R Developers,
> > I should have had the Design library running in R by now but
> > have kept putting off changing some calls to LINPACK routines
> > to use those builtin to R. Specifically I call dqrsl1 and dqr.
> > Would it be an easy task to put those in the next release of
> > R? If not I'll finally bite the bullet and get back into
> > reading LINPACK documentation (which I have but haven't
> > examined in depth).
> > If dqrsl1 and dqr are not truly parts of LINPACK but are
> > front-ends to routines that are, and if anyone has
> > those front-ends to share, that would also solve my problem
> > immediately.
> I am pretty sure that they are not part of LINPACK: certainly dqr is not
> and neither has a LINPACK name. dqr is called by qr.default in S-PLUS,
> and you should find dqrdc2 (also not LINPACK) called by R's qr an adequate
> As for dqrsl1, I've never known exactly what it supposed to do.
> Would dqrsl (which is there) suffice?
It probably will, after I get into it. Calls are very different
on the surface. Thanks -Frank
> Brian D. Ripley, firstname.lastname@example.org
> 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 272860 (secr)
> Oxford OX1 3TG, UK Fax: +44 1865 272595
Frank E Harrell Jr Prof. of Biostatistics & Statistics
Div. of Biostatistics & Epidem. Dept. of Health Evaluation Sciences
U. Virginia School of Medicine http://hesweb1.med.virginia.edu/biostat
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