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." <[EMAIL PROTECTED]> > | Date: Wed, 31 Aug 2005 12:59:04 -0400 > | > | What kind of matrix operations do you need? > | > | Jarek > | > | -----Original Message----- > | From: [EMAIL PROTECTED] > | [mailto:[EMAIL PROTECTED] On Behalf Of Ott Toomet > | Sent: Wednesday, August 31, 2005 12:54 PM > | To: r-help@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 ~~~~~~ ~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~ ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html