On 1/10/06 6:50 PM, "Thomas Lumley" <[EMAIL PROTECTED]> wrote:
> On Tue, 10 Jan 2006, Sean Davis wrote:
>
>>
>> Thanks, Thomas. That did fix the initialization issue (or apparent one).
>> Unfortunately, the reason that I started debugging was for segmentation
>> faults, which have not gone a
On Tue, 10 Jan 2006, Sean Davis wrote:
>
> Thanks, Thomas. That did fix the initialization issue (or apparent one).
> Unfortunately, the reason that I started debugging was for segmentation
> faults, which have not gone away. However, it now looks like the problem is
> internal to the C++ code a
On 1/10/06 2:27 PM, "Thomas Lumley" <[EMAIL PROTECTED]> wrote:
> On Tue, 10 Jan 2006, Sean Davis wrote:
>> and such. However, the call to the function is via .C; parameters from the
>> .C call are not being passed correctly to the function. As an example, I
>> have attached a GDB run of the c
On Tue, 10 Jan 2006, Sean Davis wrote:
> and such. However, the call to the function is via .C; parameters from the
> .C call are not being passed correctly to the function. As an example, I
> have attached a GDB run of the code. I set a breakpoint on entry to the
> function I am calling from R.
On 1/10/06 1:41 PM, "Dominick Samperi" <[EMAIL PROTECTED]> wrote:
> Sean,
>
> prm in your function calcStepgram is NOT a vector of doubles, it is of type
> SEXP, and you need to use R macros to fetch the value(s). This is done
> automatically in the Rcpp package, and if you want to see how thi
On Tue, 10 Jan 2006, Dominick Samperi wrote:
> Sean,
>
> prm in your function calcStepgram is NOT a vector of doubles, it is of type
> SEXP, and you need to use R macros to fetch the value(s). This is done
> automatically in the Rcpp package, and if you want to see how this is
> done look at the d
On 1/10/06 1:33 PM, "Prof Brian Ripley" <[EMAIL PROTECTED]> wrote:
> Looks like a type mismatch in the call: you have not shown us the C++
> code.
extern "C" void calcStepgram(double *data, double *prm, double *intervals,
int *max, int *n,double *plot) {
}
> On Tue, 10 Jan 2006, Sean
Sean,
prm in your function calcStepgram is NOT a vector of doubles, it is of type
SEXP, and you need to use R macros to fetch the value(s). This is done
automatically in the Rcpp package, and if you want to see how this is
done look at the definition of the class RcppVector in Rcpp.cpp
Dominick
I am still having some difficulties with connecting R to a C++ function. I
am able to call the function as expected after compiling the shared library
and such. However, the call to the function is via .C; parameters from the
.C call are not being passed correctly to the function. As an example,
