> reference blas (packages libblas3 and liblapack)
> atlas (package libatlas3-base or a tuned variant)
> open-blas (package libopenblas-base)
I had been playing around with update-alternatives to swap between the three,
but just in case this was causing issues I've used apt
On 30 May 2013 at 18:08, ivo welch wrote:
| hi dirk---it is indeed excellent. alas, it doesn't cover my confusion.
I reckon you did not read 'Rcpp attributes' carefully enough. Please do read
it again.
| determines whether one needs to declare attributes vs. Rcpp being smart enough
One has to
On 30 May 2013 at 20:46, Colin Rundel wrote:
| Hi everyone,
|
| I have recently run into a strange situation with RcppArmadillo and was
hoping someone might have some insight. I am working with a moderately sized
(820x820) covariance matrix in C++ which causes arms::chol to fail. In trying
to
hi dirk---it is indeed excellent. alas, it doesn't cover my confusion.
*general*: I now realize my first problem with the print function. I need
to double-escape '\'.
cppFunction('int hello(int i) { printf("hello, world\n"); }')
is wrong. it needs to be
cppFunction('int hello(int i) { pri
Soren,
You missed the most appropriate constructor:
template
Matrix( const int& nrows_, const int& ncols, Iterator start ) ;
With that we just do this:
R> Rcpp::sourceCpp('/tmp/soren.cpp')
R> soren(1:4,2,2)
[,1] [,2]
[1,]13
[2,]24
R>
and the file s
No problem on my windows machine (and returned values checked are equal).
R version 3.0.1 (2013-05-16)
Platform: x86_64-w64-mingw32/x64 (64-bit)
[1] RcppArmadillo_0.3.800.1 Rcpp_0.10.3
-Alexios
On 31/05/2013 01:46, Colin Rundel wrote:
Hi everyone,
I have recently run into a strange situation
Hi everyone,
I have recently run into a strange situation with RcppArmadillo and was hoping
someone might have some insight. I am working with a moderately sized (820x820)
covariance matrix in C++ which causes arms::chol to fail. In trying to diagnose
the issue I have written out the offending
Dear all
Apologies for a trivial question. I want to turn the vector
vec <- 1:4
into a matrix
1 3
2 3
I do:
src1 <-'
NumericVector vec(vec_);
NumericMatrix mat( as(nrow_), as(ncol_) );
for(int ii=0; iihttps://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
On 30 May 2013 at 15:08, ivo welch wrote:
|
| thx, dirk. first, apologies for multiposting earlier. I thought it did not
| allow me to post from my non-registered email address. second, apologies for
| the private email. I wasn't expecting any answers. just wanted to help with
| some feedbac
thx, dirk. first, apologies for multiposting earlier. I thought it did
not allow me to post from my non-registered email address. second,
apologies for the private email. I wasn't expecting any answers. just
wanted to help with some feedback. I will buy your Rcpp book when it comes
out.
I th
Ivo,
Appreciate that you post here. Am a little pressed for time but in a
nutshell, you missed that the new (and very nice) Rcpp Attributes which you
use for sourceCpp do NOT currently mix with Rcpp Modules.
So either concentrate on easily writing accessor function, OR concentrate on
using Modu
dear readers: I am trying to learn how to interface a simple C++ class
into the underbelly of R. I don't plan to use this regularly---just for
one or two applications. I read the introduction and faq vignettes and
hadley's tutorial. alas, I am mixing and matching badly. I also don't
have the
dear readers: I am trying to learn how to interface a simple C++ class
into the underbelly of R. I read the introduction and faq vignettes and
hadley's tutorial. alas, I am mixing and matching badly. I also don't
have the full template programming background, which dates me, and the
examples
Le 10/05/13 17:40, Julien Duvanel a écrit :
Hello again,
I hope I don't disturb you too much. I have again a small question. I
haven't seen the answer on your vignette, maybe this is not possible.
Here's what I would like to do :
/double Foo(double x, double a1, double a2) {/
/return f(x,a1,a2)
On 30 May 2013 at 18:01, Romain Francois wrote:
| Le 30/05/13 16:02, Dirk Eddelbuettel a écrit :
| >
| > On 30 May 2013 at 15:15, Romain Francois wrote:
| > | More easily, you can use Rcpp::Reference:
| > |
| > | // [[Rcpp::export]]
| > | std::string getId(Reference obj) {
| > | std::string t
On 30 May 2013 at 17:55, Anwar Ludin wrote:
| Yes I noticed that RStudio was restarting the session whenever you
| rebuild the package. I guess RStudio does this in order to make sure
| that the session is clean. I am however a bit worried from an RStudio
| end-user's perspective because the pa
Le 30/05/13 16:02, Dirk Eddelbuettel a écrit :
On 30 May 2013 at 15:15, Romain Francois wrote:
| More easily, you can use Rcpp::Reference:
|
| // [[Rcpp::export]]
| std::string getId(Reference obj) {
| std::string txt = obj.field("id");
| return txt;
| }
Thanks -- had forgotten about
Hi Dirk,
Yes I noticed that RStudio was restarting the session whenever you
rebuild the package. I guess RStudio does this in order to make sure
that the session is clean. I am however a bit worried from an RStudio
end-user's perspective because the package can be loaded/unloaded using
the pa
Hi James,
On 30 May 2013 at 23:01, James Bates wrote:
| Hi All,
|
| Just a quick not to say that I have released my Rcpp/RInside based project
| MQL2R on google code. It allows you to utilise the power of R with the highly
| popular Metatrader trading platoform to create analytics, indicators an
Anwar,
On 30 May 2013 at 16:59, Anwar Ludin wrote:
| I am experiencing a strange behaviour when unloading/reloading a custom
| package written using Rcpp. The initial load works perfectly and I can
| use the package as intended.
I my experience you will be best off simply by restarting R. Whe
I've attached the source package to this mail.
On 05/30/2013 04:59 PM, Anwar Ludin wrote:
Hello,
I am experiencing a strange behaviour when unloading/reloading a
custom package written using Rcpp. The initial load works perfectly
and I can use the package as intended.
library(RiskCetera
Hi All,
Just a quick not to say that I have released my Rcpp/RInside based project
MQL2R on google code. It allows you to utilise the power of R with the
highly popular Metatrader trading platoform to create analytics, indicators
and automated trading signals. Take a look at
https://code.google.co
Hello,
I am experiencing a strange behaviour when unloading/reloading a custom
package written using Rcpp. The initial load works perfectly and I can
use the package as intended.
library(RiskCeteraPricing)
## everything OK
When unloading the package I get the following warning:
detach("
On 30 May 2013 at 15:15, Romain Francois wrote:
| More easily, you can use Rcpp::Reference:
|
| // [[Rcpp::export]]
| std::string getId(Reference obj) {
| std::string txt = obj.field("id");
| return txt;
| }
Thanks -- had forgotten about that one.
Would you mind cooking up a quick u
More easily, you can use Rcpp::Reference:
// [[Rcpp::export]]
std::string getId(Reference obj) {
std::string txt = obj.field("id");
return txt;
}
Here, you are isolated from the implementation of reference classes
using environments and the .xData slot name.
Romain
Le 29/05/13 01:49,
Dear Dirk, Dale and Rcpp advisors,
thank you very much for your help.
Finally with your help the source of my problem could be identified.
It was the way I reloaded the newly build and changed package.
Searching the web I had found the following R command sequence to
reload a package:
detach( 'p
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