lmassis at yahoo.com.br
Fri Apr 30 13:33:22 CEST 2004
Is there any way to compile R 1.9 Sources in VC++ ?
Estatístico / CONFE 7439
UIN : 41-764-523 / Skype : lmassis / msn : lmassis at msn.com
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Prof Brian Ripley
Sent: Friday, April 30, 2004 6:33 AM
Cc: 'r-help at stat.math.ethz.ch'
Subject: Re: [R] dlls
On Fri, 30 Apr 2004, Ben.Flood wrote:
> I am trying to run an algorithm in a large dataset and want to speed
> this process up by using C/C++ functions. I have been attempting to
> create a dll library using Microsoft Visual C++ in Windows and call
> that using
> dyn.load("file.dll") but when I use is.loaded("function") I invariably
> get FALSE.
> If anybody has done this and could give me more detailed
> it would be very much appreciated,
It's a `Microsoft Visual C++ in Windows' issue, not an R issue. I expect
you are not exporting any entry points (the default under that `system',
amazingly): readme.packages tells you how to use VC++ in detail, and there
are worked examples in the on-line complements to `S Programming'.
Do you have a very good reason to make things difficult for yourself by not
using the recommended compilers? Just a thought ....
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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