[R] "best" c++ matrix library?

[Romain Francois]

Le 01.09.2005 10:32, Ott Toomet a écrit :

>Thanks for everyone who replied to my question.
>
>I tried newmat myself, seems to be working well.  What I am interested in
>is something like
>
>* Fast element-wise operations.  You know, it may be slow in R.
>
>* (Some) control over memory allocation.  I would like to specify when
>  the matrix should not be copied.
>
>* Compatibility with R.  At least the way how the matrix data is
>  represented in memory should be the same as R has.  Otherwise, the
>  data interchange may become slow and memory-consuming.
>
>* And, of course, the basic matrix operations like multiplication,
>  inverting, eigenvalues etc....
>
>I am using linux/gcc if that matters.
>
>Best,
>Ott
> | From: "Tuszynski, Jaroslaw W." <JAROSLAW.W.TUSZYNSKI at saic.com>
> | Date: Wed, 31 Aug 2005 12:59:04 -0400
> | 
> | What kind of matrix operations do you need? 
> | 
> | Jarek
> | 
> | -----Original Message-----
> | From: r-help-bounces at stat.math.ethz.ch
> | [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Ott Toomet
> | Sent: Wednesday, August 31, 2005 12:54 PM
> | To: r-help at stat.math.ethz.ch
> | Subject: [R] "best" c++ matrix library?
> | 
> | Hi folks,
> | 
> | I am planning to write some more time-consuming matrix manipulations in c++.
> | What is the experience with the existing c++ matrix libraries?  Do you have
> | some recommendations?  Are some libraries more compatible with R than the
> | others?
> | 
> | All suggestions welcome!
> | 
> | Best,
> | Ott
>  
>
Hello,

CPPLAPACK : <http://cpplapack.sourceforge.net/> is a c++ wrapper for 
lapack routines.
It is not so complicated to use once you have blas and lapack installed.
I think it is much faster than newmat.

Romain

-- 
visit the R Graph Gallery : http://addictedtor.free.fr/graphiques
~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~
~~~~~~      Romain FRANCOIS - http://addictedtor.free.fr         ~~~~~~
~~~~        Etudiant  ISUP - CS3 - Industrie et Services           ~~~~
~~                http://www.isup.cicrp.jussieu.fr/                  ~~
~~~~           Stagiaire INRIA Futurs - Equipe SELECT              ~~~~
~~~~~~   http://www.inria.fr/recherche/equipes/select.fr.html    ~~~~~~
~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~