On 12-08-28 02:23 PM, Peng Yu wrote:
> Just to clarify my original question, I want to convert from native R
> vector to matrix directly (not through NumericVector). The following
> code involves NumericVector. Does it result in extra copying of a
> NumericVector?
>
>> suppressPackageStartupMessag
Hi,
For a matrix, the size intuitively should be just nrow * ncol. Hence,
it is reasonable to call size(). But the following code gives errors,
because two parent class all have the size() member function. Should
something be done to make one of them available to NumericMatrix?
suppressPackageSta
On Tue, Aug 28, 2012 at 4:17 PM, Peng Yu wrote:
> Hi,
>
> The closest thing that I can find to initialize a NumericMatrix with a
> NumericVector is the following constructor from Rcpp/vector/Matrix.h.
> But I need to see an example on how to use it. Does anybody have any
> example to share with me
Michael,
On 28 August 2012 at 20:54, Michael Braun wrote:
| Dirk:
|
| Thanks for the kind words, although I'm not sure that 2 packages constitutes
a flood.
|
| The only reason I was using c++11 was to access some mathematical functions
in TR1. I can work around that, so I do not have to send
Hi,
The closest thing that I can find to initialize a NumericMatrix with a
NumericVector is the following constructor from Rcpp/vector/Matrix.h.
But I need to see an example on how to use it. Does anybody have any
example to share with me? Thanks!
template
Matrix( const int& nrows_, cons
Dirk:
Thanks for the kind words, although I'm not sure that 2 packages constitutes a
flood.
The only reason I was using c++11 was to access some mathematical functions in
TR1. I can work around that, so I do not have to send any C++11 code to CRAN.
But still, playing around with some more, th
Hi Michael,
Congrats on your recent flooding of CRAN with packages :)
On 28 August 2012 at 18:46, Michael Braun wrote:
| Is it possible that there is some kind of incompatibility among clang, libc++
and Rcpp? Consider this super-simple example (filename is tr1.cpp):
|
| #include
| RcppExport
Is it possible that there is some kind of incompatibility among clang, libc++
and Rcpp? Consider this super-simple example (filename is tr1.cpp):
#include
RcppExport SEXP testtr1() {
return(Rcpp::wrap(0));
}
If I compile it as a dynamic library with clang, I get:
clang -O3 -m64 -msse4.2 -s
For completeness, on Linux I get (with thanks to Davor providing his package;
and omitting compiler warnings over signed/unsigned comparisons in Peng's
code) the following:
edd@max:/tmp$ r pengyu3.r
test replications elapsed relative user.self
2
I tried to reproduce your results, but I cannot :
> xx<-matrix(1:6, 2)
> benchmark(test(xx), test_inline(xx), .Call('test', xx))
test replications elapsed relative user.self sys.self user.child
3 .Call("test", xx) 100 0.996 1.00 0.9910.006 0
1
Sorry to mislead. My RInside attempts were with Windows binaries and
package freshly downloaded from CRAN (into a directory without spaces
in the names, as RInside's make had problems with the space in
Windows' "Program Files" -- even after I had forced the name to
Progra~1 it still could not find
I'm working with Rcpp now. I would say use pre-built binaries, including
R, whenever possible. I've found the most success by avoiding local
builds. Now if I could just get corporate to approve the 64 bit builds
for the GSL...
There are pre-built GSL libraries for 64 bit Windows available, if you
On 28 August 2012 at 06:14, Dan Murphy wrote:
| Hmm, that's a possibility. When I built R from source, I ended up with
| the 64bit version only. Perhaps there's something wrong with my
| Rtools. I will look into that.
Or maybe it is your R-built-from-source which may make your setup
non-standard.
Hmm, that's a possibility. When I built R from source, I ended up with
the 64bit version only. Perhaps there's something wrong with my
Rtools. I will look into that.
Thanks,
Dan
On Tue, Aug 28, 2012 at 4:08 AM, Dirk Eddelbuettel wrote:
>
> On 27 August 2012 at 21:23, Dan Murphy wrote:
> | Dirk,
>
On 27 August 2012 at 21:23, Dan Murphy wrote:
| Dirk,
|
| I made some progress. I noticed that the only folder in
...\library\RInside\lib
| is i386, which explains why, when I set the architecture to x64 in
WINFILE.WIN,
| I get the error "g++.exe: error: /libRInside.a: No such file or directory
On 27 August 2012 at 22:36, Peng Yu wrote:
| I have the following two functions which wrap a C++ function differently.
|
| rcpp_hello_world=local({
| sym=getNativeSymbolInfo('rcpp_hello_world', PACKAGE='mypkg')
| function() .Call(sym, PACKAGE='mypkg')
| })
|
| rcpp_hello_world1=function(){
|
16 matches
Mail list logo
