On 9 December 2012 at 01:01, Dirk Eddelbuettel wrote:
| I think sample() should go into Armadillo proper.
Sorry, it's late and we had 20+ people over: "into RcppArmadillo proper"
is what I meant to say.
Dirk
--
Dirk Eddelbuettel | e...@debian.org | http://dirk.eddelbuettel.com
_
On 8 December 2012 at 23:20, Christian Gunning wrote:
| > On 8 December 2012 at 15:44, Romain Francois wrote:
| > | I've been using the microbenchmark package extensively and took
| > | inspiration from it to implement a Timer class in Rcpp to measure
| > | performance at a lower level.
|
| Very
> On 8 December 2012 at 15:44, Romain Francois wrote:
> | I've been using the microbenchmark package extensively and took
> | inspiration from it to implement a Timer class in Rcpp to measure
> | performance at a lower level.
Very exciting.
>
> That's probably quite useful. I had an older/simpler
Le 08/12/12 19:54, Douglas Bates a écrit :
On Sat, Dec 8, 2012 at 10:35 AM, c s mailto:conradsand.a...@gmail.com>> wrote:
Armadillo sparse matrices are stored in Compressed Sparse Column format:
http://en.wikipedia.org/wiki/Sparse_matrix#Compressed_sparse_column_.28CSC_or_CCS.29
T
On Sat, Dec 8, 2012 at 10:35 AM, c s wrote:
> Armadillo sparse matrices are stored in Compressed Sparse Column format:
>
>
> http://en.wikipedia.org/wiki/Sparse_matrix#Compressed_sparse_column_.28CSC_or_CCS.29
>
> This layout is used by a majority of external solvers.
>
> It would be far more eff
Ah. One thing I could do is leverage this:
#ifdef ARMA_EXTRA_SPMAT_PROTO
#include ARMA_INCFILE_WRAP(ARMA_EXTRA_SPMAT_PROTO)
#endif
Not sure how yet.
Le 08/12/12 19:17, Romain Francois a écrit :
That looks very similar, if not identical to what dgCMatrix uses. Can
you direct me to a construct
That looks very similar, if not identical to what dgCMatrix uses. Can
you direct me to a constructor where I could feed such information ?
Romain
Le 08/12/12 17:35, c s a écrit :
Armadillo sparse matrices are stored in Compressed Sparse Column format:
http://en.wikipedia.org/wiki/Sparse_matri
Armadillo sparse matrices are stored in Compressed Sparse Column format:
http://en.wikipedia.org/wiki/Sparse_matrix#Compressed_sparse_column_.28CSC_or_CCS.29
This layout is used by a majority of external solvers.
It would be far more efficient to take this layout into account when
copying matric
On 8 December 2012 at 15:44, Romain Francois wrote:
| I've been using the microbenchmark package extensively and took
| inspiration from it to implement a Timer class in Rcpp to measure
| performance at a lower level.
That's probably quite useful. I had an older/simpler class here from
somethin
Hello,
I've been using the microbenchmark package extensively and took
inspiration from it to implement a Timer class in Rcpp to measure
performance at a lower level.
The class is pretty raw right now. platform specific details are
abstracted out. So the only things needed are:
- include t
Le 08/12/12 09:45, Søren Højsgaard a écrit :
Dear all,
I want to use a matrix (of type "dgCMatrix" from the Matrix package) in
RcppArmadillo, so I do:
library(inline)
src <- '
using namespace arma;
using namespace Rcpp;
SpMat X = as >(XX_);
'
foo <- cxxfunction(signature(XX_=""), body=src, plu
Hi Søren,
On 8 December 2012 at 08:45, Søren Højsgaard wrote:
| I want to use a matrix (of type "dgCMatrix" from the Matrix package) in
RcppArmadillo, so I do:
|
| library(inline)
| src <- '
| using namespace arma;
| using namespace Rcpp;
| SpMat X = as >(XX_);
| '
| foo <- cxxfunction(signatur
Dear all,
I want to use a matrix (of type "dgCMatrix" from the Matrix package) in
RcppArmadillo, so I do:
library(inline)
src <- '
using namespace arma;
using namespace Rcpp;
SpMat X = as >(XX_);
'
foo <- cxxfunction(signature(XX_=""), body=src, plugin="RcppArmadillo")
- but this fails. It seem
13 matches
Mail list logo
