Re: [R] Why R is 200 times slower than Matlab ?

From: Shige Song <shigesong_at_gmail.com>
Date: Fri, 02 May 2008 12:19:17 +0800

So RA has to be installed in "c:\program files\R\RXXX"? I have R installed on another partition, but RA failed to locate it.

Shige

On Thu, May 1, 2008 at 9:47 PM, Zhandong Liu <zhandong_at_mail.med.upenn.edu> wrote:

> Great. Thanks a lot.
> ZD
>
> On Wed, Apr 30, 2008 at 7:31 PM, Nelson Castillo <nelsoneci_at_gmail.com>
> wrote:
>
> > On Wed, Apr 30, 2008 at 6:27 PM, Gabor Grothendieck
> > <ggrothendieck_at_gmail.com> wrote:
> > > Aside from optiming your code by making use of R functions
> > > that use C underneath as much as possible the big difference
> > > between R and Matlab is Matlab's just-in-time compilation of
> > > code. When that was introduced in Matlab huge speedups of
> > > Matlab programs were noticeable.
> > >
> > > For R, there is a new package on CRAN, jit, that
> > > aims to provide similar speedups.
> >
> > http://www.milbo.users.sonic.net/ra/index.html
> >
> > Great! I just found out about ra. In Python I love psyco and I guess I
> > will test
> > ra soon.
> >
> > Thanks,
> > N.-
> >
> > --
> > http://arhuaco.org
> >
>
>
>
> --
> Zhandong Liu
>
> Genomics and Computational Biology
> University of Pennsylvania
>
> 616 BRB II/III, 421 Curie Boulevard
> University of Pennsylvania School of Medicine
> Philadelphia, PA 19104-6160
>
> [[alternative HTML version deleted]]
>
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>

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