On 22/04/2012 04:52, Jaimin Dave wrote:
Hi Everyone,
I am new to R and I am trying to return array(dynamic) from C to R. But
when I print array(vector) in R it gives NA as output. When I print array
in C it gives correct o/p but some how it is not returned to R.
*Code in C:*
void test(double *vec,double *size){
vec = (double *)calloc(2 , sizeof(double));
*(vec+0) = 1;
*(vec+1) = 2;
*size = 2;
}
*Code in R:*
test<-.C("test",vec=as.double(),size=as.integer())
print(test$vec[1:test$size])
Is there any other way to implement above thing?
Use .Call. As the documentation tells you, you cannot do this in .C
(and you are likely to cause segfaults by trying).
Any help would be appreciated
Thanks
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Brian D. Ripley, rip...@stats.ox.ac.uk
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