Displaying 7 results from an estimated 7 matches for "rdqags".
2004 Jul 09
1
Example using Rdqags
...ad
> the "Writing R extensions" manual but with no success. I
> searched the Web and archives but did not find appropriate
> example. To be specific, I am looking for an example of the
> .c file and .R file aimed to compute the integral of f(x)=x^2
> from 0 to 1 using Rdqags?
>
> I am running R 1.9.1 on Sun.
> Much thanks for any comments/help.
> Vicky.
2004 Nov 18
0
Calling Rdqags doesn't produce correct result.
Does anyone has a clue what went wrong in the
following attempt?
I am trying to call the R built-in function Rdqags()
from my C
program for numerical integration. Following are the C
program
and the corresponding R program:
C program
---------
void test(double *a,
double *b,
double *epsabs,
double *epsrel,
double *result,
double *abserr,...
2005 May 09
2
use "integrate" for functions defined in C, not R
Dear all,
I am trying to use the C code for "integrate" function ( that calls
Rdqagi and Rdqags) so that I can integrate a function defined in C,
instead of passing from R.
Is there a way for doing this?
My unsuccessful attempt:
I looked into the files (including integrate.c, Applic.h) and
1. modified the definition of
"integr_fn" by droping the environment "*ex",...
2007 Jan 19
8
kate editor for R
Like kile for LaTeX, Linux/KDE's kate editor is an excellent editor for
R, with easy code submission to a running R process. Syntax
highlighting is good. I have not been able to figure out two things:
- how to automatically reformat a line or region of text using good
indentation rules (Emacs/ESS make this so easy by just hitting Tab while
the cursor is in a line, or highlighting a
2023 Jun 16
0
R 4.3.1 is released
...6c011a9724930e356eac4d7ddfcaa63c559f95986063ede3bf91a VERSION-INFO.dcf
8dd0bf24f1023c6f618c3b317383d291b4a494f40d73b983ac22ffea99e4ba99 R-4/R-4.3.1.tar.gz
This is the relevant part of the NEWS file
CHANGES IN R 4.3.1:
C-LEVEL FACILITIES:
* The C-level API version of R's integrate(), Rdqags() in Applic.h,
now returns the correct number of integrand evaluations neval,
fixing PR#18515 reported and diagnosed by Stephen Wade.
* The C prototypes for LAPACK calls dspgv and dtptrs in
R_exts/Lapack.h had one too many and one too few character length
arguments - bu...
2023 Jun 16
0
R 4.3.1 is released
...6c011a9724930e356eac4d7ddfcaa63c559f95986063ede3bf91a VERSION-INFO.dcf
8dd0bf24f1023c6f618c3b317383d291b4a494f40d73b983ac22ffea99e4ba99 R-4/R-4.3.1.tar.gz
This is the relevant part of the NEWS file
CHANGES IN R 4.3.1:
C-LEVEL FACILITIES:
* The C-level API version of R's integrate(), Rdqags() in Applic.h,
now returns the correct number of integrand evaluations neval,
fixing PR#18515 reported and diagnosed by Stephen Wade.
* The C prototypes for LAPACK calls dspgv and dtptrs in
R_exts/Lapack.h had one too many and one too few character length
arguments - bu...
2023 Jun 16
0
R 4.3.1 is released
...6c011a9724930e356eac4d7ddfcaa63c559f95986063ede3bf91a VERSION-INFO.dcf
8dd0bf24f1023c6f618c3b317383d291b4a494f40d73b983ac22ffea99e4ba99 R-4/R-4.3.1.tar.gz
This is the relevant part of the NEWS file
CHANGES IN R 4.3.1:
C-LEVEL FACILITIES:
* The C-level API version of R's integrate(), Rdqags() in Applic.h,
now returns the correct number of integrand evaluations neval,
fixing PR#18515 reported and diagnosed by Stephen Wade.
* The C prototypes for LAPACK calls dspgv and dtptrs in
R_exts/Lapack.h had one too many and one too few character length
arguments - bu...