Hi,
On Sat, Sep 3, 2011 at 12:54 AM, Noah Silverman wrote:
> Hi,
>
> Just starting to learn about Rcpp tonight (Using it through the inline
> library)
>
> I'm attempting to construct a matrix and then fill it with values as I
> iterate through my function. The results are wrong. Am I accessin
Great. This definitely seems like a better approach to rely on R. I have
Revolution R setup on another machine so I just installed RcppArmadillo with
that and indeed it appears to now be relying on Intel's MKL.
Thanks!
Zarrar
On Sat, Sep 3, 2011 at 12:45 AM, Dirk Eddelbuettel wrote:
>
> Hi Zarr
Hi,
Just starting to learn about Rcpp tonight (Using it through the inline library)
I'm attempting to construct a matrix and then fill it with values as I iterate
through my function. The results are wrong. Am I accessing the cells of the
matrix incorrectly?
The idea was to have an integer i
On 3 September 2011 at 10:54, Darren Cook wrote:
| Anyway, I extended Christian Gunning's example with a noNA version
| [1], then an STL version [2] that uses std::vector, then a C/C++ pointer
| version [3]. [4] shows my compiler options (all defaults).
|
| test replications elapsed relat
On 2 September 2011 at 14:30, Noah Silverman wrote:
| Hi,
|
| I'm starting to use Rcpp (through rinside).
|
| I want to create several Rcpp::NumericMatrix in my C++ code and then return
| them all.
|
| Is this possible?
Please attempt to at least read one or two of the intro documents which
C
Hi Zarrar,
On 2 September 2011 at 17:19, Zarrar Shehzad wrote:
| Is it possible to install RcppArmadillo with Intel's MKL library?
In principle, yes. In practice, probably too as well :)
When we started this we used Armadillo as library and via a configure
step. Doug later convinced us that rel
> There is a noNA() wrapper for Rcpp sugar to push performance -- NA checking
> is implemented on access 'because that is how R does' (and our first task to
> reproduce numbers you'd get at the R prompt) but if you know what you are
> doing and are aware of possible pitfalls you can skip this. See
>> | double *p=third_party_function(nn);
>> | NumericVector ret(p,p+nn);
>> | delete p;
>> | return ret;
> What puzzles me is why Darren's original version doesn't work.
Due to an embarrassing bug in my test code: delete should be delete[].
So, I think we can say these two idioms are equivalent:
>> > Maybe this would do
>> >
>> > double *p=third_party_function(nn);
>> > NumericVector ret(nn); // new memory
>> > copy(ret.begin(), ret.end(), p); // untested
>> > delete p;
>> > return ret;
>> >
>>> | where third_party_function() is C legacy code that is
>>> documented as | re
Genius. Thank You!!
--
Noah Silverman
UCLA Department of Statistics
8117 Math Sciences Building #8208
Los Angeles, CA 90095
On Sep 2, 2011, at 2:33 PM, Hadley Wickham wrote:
> Return a list of matrices?
>
> Hadley
>
> On Fri, Sep 2, 2011 at 4:30 PM, Noah Silverman wrote:
>> Hi,
>> I'm start
Hi,
I'm starting to use Rcpp (through rinside).
I want to create several Rcpp::NumericMatrix in my C++ code and then return
them all.
Is this possible?
--
Noah Silverman
UCLA Department of Statistics
8117 Math Sciences Building #8208
Los Angeles, CA 90095
Here are 2 links that contain examples of lists being used:
http://dirk.eddelbuettel.com/code/rcpp.armadillo.html
http://cran.r-project.org/web/packages/Rcpp/vignettes/Rcpp-quickref.pdf
Z
On Fri, Sep 2, 2011 at 5:35 PM, Noah Silverman wrote:
> Sorry to ask something so simple, but could you poi
Sorry to ask something so simple, but could you point me to an example?
Thanks!
--
Noah Silverman
UCLA Department of Statistics
8117 Math Sciences Building #8208
Los Angeles, CA 90095
On Sep 2, 2011, at 2:33 PM, Hadley Wickham wrote:
> Return a list of matrices?
>
> Hadley
>
> On Fri, Sep 2,
Return a list of matrices?
Hadley
On Fri, Sep 2, 2011 at 4:30 PM, Noah Silverman wrote:
> Hi,
> I'm starting to use Rcpp (through rinside).
> I want to create several Rcpp::NumericMatrix in my C++ code and then return
> them all.
> Is this possible?
> --
> Noah Silverman
> UCLA Department of Sta
Is it possible to install RcppArmadillo with Intel's MKL library?
I tried to replace the "$(LAPACK_LIBS) $(BLAS_LIBS)" in the Makevars with
links to Intel's MKL: "-L/opt/intel/composerxe/mkl/lib/intel64/
-lmkl_gf_ilp64 -lmkl_core -lmkl_def -lmkl_gnu_thread -
lgomp -L/opt/intel/composerxe/mkl/lib/i
On 2011-09-02, at 5:19 AM, Dirk Eddelbuettel wrote:
> Maybe this would do
>
> double *p=third_party_function(nn);
> NumericVector ret(nn); // new memory
> copy(ret.begin(), ret.end(), p); // untested
> delete p;
> return ret;
>
> | where third_party_function() is C legacy code tha
On 2 September 2011 at 10:42, Douglas Bates wrote:
| On Fri, Sep 2, 2011 at 7:19 AM, Dirk Eddelbuettel wrote:
| >
| > On 2 September 2011 at 11:10, Darren Cook wrote:
| > | > | I've extended Christian Gunning's speed test with an STL and C/C++
| > | > | version; I was about to post but then I got
On Fri, Sep 2, 2011 at 7:19 AM, Dirk Eddelbuettel wrote:
>
> On 2 September 2011 at 11:10, Darren Cook wrote:
> | > | I've extended Christian Gunning's speed test with an STL and C/C++
> | > | version; I was about to post but then I got a bit stuck with using
> | > | Rcpp::wrap() for a raw block o
Hi, I find it convenient to use inline for debugging Rcpp script. Armadillo
possesses print member functions, such as .print() that would be very helpful
to me to see object values under failure. Is it possible within RcppArmadillo
to propagate these .print() commands to the R layer? On a r
On 2 September 2011 at 11:10, Darren Cook wrote:
| > | I've extended Christian Gunning's speed test with an STL and C/C++
| > | version; I was about to post but then I got a bit stuck with using
| > | Rcpp::wrap() for a raw block of memory. I'm using this: | |
| > src1cpp<-' | int nn=as(n); | do
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