Quoting Uwe Ligges :
I don't agree that it's overkill -- you get to sidestep the whole `R
CMD SHLIB ...` and `dyn.load` dance this way while you experiment with
C(++) code 'live" using the inline package.
You need two additional packages now where you have to rely on the fact
those are avai
On 06.10.2011 15:41, Steve Lianoglou wrote:
Hi,
2011/10/6 Uwe Ligges:
On 06.10.2011 14:51, Jan van der Laan wrote:
An obvious reason might be that your second argument should be a pointer
to int.
As others have mentioned, you might want to have a look at Rccp and/or
inline. The documentati
Hi,
2011/10/6 Uwe Ligges :
> On 06.10.2011 14:51, Jan van der Laan wrote:
>>
>> An obvious reason might be that your second argument should be a pointer
>> to int.
>>
>> As others have mentioned, you might want to have a look at Rccp and/or
>> inline. The documentation is good and I find it much e
On 06.10.2011 14:51, Jan van der Laan wrote:
An obvious reason might be that your second argument should be a pointer
to int.
As others have mentioned, you might want to have a look at Rccp and/or
inline. The documentation is good and I find it much easier to work with.
For example, your exampl
An obvious reason might be that your second argument should be a
pointer to int.
As others have mentioned, you might want to have a look at Rccp and/or
inline. The documentation is good and I find it much easier to work
with.
For example, your example could be written as:
library(Rcpp)
l
Hello,
first thank you for your answers.
I did not read the whole pdf Writing R Extension, but I read this
strongly shortened introduction to this subject:
http://www.math.kit.edu/stoch/~lindner/media/.c.call%20extensions.pdf
I get the same error with this C-function:
void test(double * b,
Hi,
As other have said, it's very difficult to help you without an example
+ code to know what you are talking about.
That having been said, it seems as if you are just getting your feet
wet in this R <--> C bridge, and I'd recommend you checkout the "Rcpp"
and "inline" package to help make your
On 05/10/11 01:04, Grigory Alexandrovich wrote:
Hello,
I wrote a function in C, which works fine if called from the
main-function in C.
But as soon as I try to call this function from R like .C('foo',
as.double(x), as.integer(y)), the programm crashes.
I created a dll with the cmd command
This looks like a classic case of not reading the manual, and then compounding
it by not reading the posting guide. The manual would be the "Writing R
Extensions" pdf that comes with R or you can google it. The posting guide is
referenced at the bottom of this and every other posting on this mai
Without knowing that C code, we cannot know. Have you read Writing R
Extensions carefully? I.e. take care with memory allocation and printing
as mentioned in the manual.
Uwe Ligges
On 04.10.2011 14:04, Grigory Alexandrovich wrote:
Hello,
I wrote a function in C, which works fine if called f
Hello,
I wrote a function in C, which works fine if called from the
main-function in C.
But as soon as I try to call this function from R like .C('foo',
as.double(x), as.integer(y)), the programm crashes.
I created a dll with the cmd command R --arch x64 CMD SHLIB foo.c and
loaded it into
Sorry for the noise. ***After*** sending off my previous post,
I spotted the loony myself. The line
for(k=0; kThat's m for Mike not n for November. Sigh. Staring me in the face
all the time.
Again, apologies for the noise.
cheers,
Rolf
#
I've been trying to get my head around using matrices in calls to .C().
As an exercise I wrote some code to calculate the product of two
matrices.
(Well, it makes it easy to check if one is getting the right answer!)
After obtaining some advice from a Certain Very Wise Person at Oxford,
(to f
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