Erin, I think rumors of the deprecation of .Fortran are greatly exaggerated,
but I’d welcome some confirmation of this from
someone in R core. There is quite a lot of .Fortran usage in packages, and
perhaps even in base R...
> On Dec 26, 2020, at 7:57 PM, Erin Hodgess wrote:
>
> Is .Fortran
I’ve tried recoding some of Delaporte to use the .Fortran interface and I
don’t know what I’m doing wrong but it either doesn’t work or crashes my R
instance completely.
Avi
On Sat, Dec 26, 2020 at 11:48 AM Koenker, Roger W
wrote:
> I’ve recoded a version of one of my quantile regression fittin
Is .Fortran going to be deprecated, please? I have gotten amazing speed up
with geostatistics processes using HPC type tools.
Thanks
On Sat, Dec 26, 2020 at 9:48 AM Koenker, Roger W
wrote:
> I’ve recoded a version of one of my quantile regression fitting functions
> to use .C64 from dotCall64
Will there be any interest in using Coarrays Fortran, please?
Thanks,
Erin
Erin Hodgess, PhD
mailto: erinm.hodg...@gmail.com
On Wed, Dec 23, 2020 at 10:29 AM Martin Maechler
wrote:
> > Balasubramanian Narasimhan
> > on Wed, 23 Dec 2020 08:34:40 -0800 writes:
>
> > I think it s
As for speed, I suspect much of the speedup when converting from .Fortran
to .Call will be due to checking the validity of the arguments (lengths,
types, ranges, etc.) in C code instead of in R code. There can also be
less copying of the arguments and the returned objects will tend to be
smaller.
As the proverbial naive R (ab)user I’m left wondering:
o if I updated my quantreg_init.c file in accordance with Bill’s
suggestion could I
then simply change my .Fortran calls to .Call?
No. .Call(C_func, arg1, arg2) expects C_func's arguments to all be SEXP*
(pointers to
In summary.c, in function 'isum', the loop is 'ITERATE_BY_REGION' that contains
'for' loop
for (int k = 0; k < nbatch; k++)
It is since SVN revision 73445, in released R since version 3.5.0.
Previously, the loop is
for (R_xlen_t i = 0; i < n; i++)
Inside 'ITERATE_BY_REGION', the type of the ind
Don't know this piece well but I am guessing that you haven't found an
example because the iterator is going up to the length of a vector
anymore but only to the number of batches, which is unlikely to be
more than 2^31.
On Tue, Dec 22, 2020 at 12:30 PM Suharto Anggono Suharto Anggono via
R-devel
