On 27 May 2003 at 22:45, [EMAIL PROTECTED] wrote:
> In a message dated 5/27/2003 7:11:00 PM Eastern Standard Time, [EMAIL PROTECTED]
> writes:
>
> > originalContent/0,289142,sid39_gci902076,00.html
>
> I run MATLAB v6.5 Release 13. In my view, the benefit of Matlab over R depends on
> your objectives. I am now using R exclusively, except for solving differential and
> partial differential equations which R is weak in. If a comparable suite of DEQ
> solvers were available for R, then, in my opinion,
R would be superior to MATLAB for many reasons (too numerous to list).
>
> Both use LAPACK. Prof. Bates Matrix package is a useful complement based on LAPACK.
> From a computational statistics point of view, MATLAB cannot compare to R, R is much
> much better anf the support on r-news, well, there is nothing like it for MATLAB.
> So, unless you need to solve DEQs (IVPs and
BVPs), PDEs, and now delay DEQs, use R.
>
> I have tried to find the fortran versions of the MATLAB ODE suite but have not been
> successful. Also, looking at the MATLAB code has not been helpful because the
> solvers make extensive use of MATLAB built-ins. Don't get me wrong, MATLAB is an
> outstanding product...R is "simply the best" (Tina
Turner)
>
> The Serial Fortran Solvers for ODE Initial Value Problems by Alan C. Hindmarsh in
> Fortran (http://www.llnl.gov/CASC/odepack/) would be very nice to have in R for
> scientific computing.
>
On CRAN there is the package odesolve. From library(help=odesolve):
Package: odesolve
Version: 0.5-8
Date: 2003/01/31
Title: Solvers for Ordinary Differential Equations
Author: R. Woodrow Setzer <[EMAIL PROTECTED]>
Maintainer: R. Woodrow Setzer <[EMAIL PROTECTED]>
Depends: R (>= 1.4.0)
Description: This package provides an interface for the ODE solver
lsoda. ODEs are expressed as R functions or as compiled code.
Can you comment on the benefits of odepack versus lsoda?
Kjetil Halvorsen
> There are benchmark comparisions of MATLAB vs. S-PLUS in the s-news archives.
>
> Livin La Vida [R]oca (tranlation [R]ockin and [R]ollin)
>
> oscar
>
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