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,
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)
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
Hi,
2011/10/6 Uwe Ligges lig...@statistik.tu-dortmund.de:
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
On 06.10.2011 15:41, Steve Lianoglou wrote:
Hi,
2011/10/6 Uwe Liggeslig...@statistik.tu-dortmund.de:
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
Quoting Uwe Ligges lig...@statistik.tu-dortmund.de:
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
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
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
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
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
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 life
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