Thank you for your help. In any case, I eventually realized that I had
reversed the Fortran/R column major order in the Fortran, which is why
elements were returned incorrectly. As you point out, I did not run into
memory access issues because of the self-similar array sizes.
--
View this messa
On 23-10-2012, at 12:33, paulfjbrowne wrote:
> Yes, I had stripped out the Fortran from the geta subroutine downwards
> because is wasn't very important in returning a test output matrix.
>
But then any results are not reproducible. So there is no purpose in trying to
reproduce your results.
S
Yes, I had stripped out the Fortran from the geta subroutine downwards
because is wasn't very important in returning a test output matrix.
I think that I should make explicit what problem I believe I am seeing in
what I have coded, and what form of the output matrix I would prefer.
When I run th
Your attachments did not make it through to the official R-help mailing list.
Nabble R is not R-help.
I downloaded the files from the links to Nabble.
See further down for my comments.
On 22-10-2012, at 14:24, paulfjbrowne wrote:
> I haven't determined the root cause of the numerical accuracy bu
I haven't determined the root cause of the numerical accuracy bug yet (I
haven't determined a way to compare the values used when the code is run
from R as opposed to from a Fortran test), but I did have another issue with
retrieving the matrix from the Fortran code that I hoped you might be able
t
Look at my comments in between your post.
On 20-10-2012, at 19:18, paulfjbrowne wrote:
> I will look into using inline, but since the Fortran code is several thousand
> lines long & is comprised of multiple subroutines, compiling it into a
> shared object & dynamically loading it into R is prob
I will look into using inline, but since the Fortran code is several thousand
lines long & is comprised of multiple subroutines, compiling it into a
shared object & dynamically loading it into R is probably the easier
solution.
I have also noticed a strange numerical problem when calling the routi
See inline.
On 20-10-2012, at 17:18, paulfjbrowne wrote:
> Hello,
>
> I have been trying to use a collection of Fortran subroutines to return a 2D
> array of calculated values to my R code, calling a Fortran wrapper
> subroutine from R. I've done this successfully before with C & C++ code.
>
Hello,
I have been trying to use a collection of Fortran subroutines to return a 2D
array of calculated values to my R code, calling a Fortran wrapper
subroutine from R. I've done this successfully before with C & C++ code.
The Fortran wrapper subroutine which is to be called by R takes a set of
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