From ggrothendieck at gmail.com  Sat May 13 02:11:45 2006
From: ggrothendieck at gmail.com (Gabor Grothendieck)
Date: Fri, 12 May 2006 20:11:45 -0400
Subject: [Rd] reusing routines
In-Reply-To: <200605122228.k4CMSkL06384@blindpig.mayo.edu>
References: <200605122228.k4CMSkL06384@blindpig.mayo.edu>
Message-ID: <971536df0605121711x2f835e6bg73153bad36aa49d0@mail.gmail.com>

R has a sparse matrix package called Matrix.  Maybe with
that you don't need any C?

On 5/12/06, Terry Therneau <therneau at mayo.edu> wrote:
>   I've created some Splus code for a microarray problem that
>        - needed to be in C, to take advantage of some sparse matrix
> properties
>        - uses a cholesky decompostion as part of the computation
>
>  For the cholesky, I used the cholesky2 routine, which is a part of the
> survival library.  It does just what I want and I'm familiar with it (after
> all, I wrote it).
>
>  In Splus, this all works fine.  A colleague working on the same problem
> prefers R; things don't work there.  The dyn.load command complains that
> the routine is not found, even when the survival library is already loaded.
>
>  I looked at the manual page for dyn.load, but don't see anything.  What
> are we missing?
>
>  Please reply via email, as I don't read this list.  (But I likely will start
> to later this summer, when I port the newest mixed-effects Cox model code
> over from S).
>
>        Terry Therneau
>        Mayo Clinic
>        therneau.terry at mayo.edu
>
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
>



[Rd] reusing routines
Gabor Grothendieck