using gsl library....

[Lars Schouw <schouwla@yahoo.com>]

This is newbii !!!

We are trying to use the ocmlgsl library.

we are trying to call the ugaussian_P function
belonging to Gsl_cdf.

This works:

open Gsl_fun;;

let _ =
Gsl_error.init () ;
Gsl_rng.env_setup ()

let rng = Gsl_rng.make (Gsl_rng.default ())

let sigma = 3.

let _ =
Printf.printf "# gaussian with sigma=%g\n" sigma ;
for i=1 to 10 do
let x = Gsl_randist.gaussian rng 3. in
Printf.printf "%+.7f\n" x
done


This does not compile:
let _ =
Gsl_error.init () ;
Gsl_rng.env_setup ()

let rng = Gsl_rng.make (Gsl_rng.default ())

let sigma = 3.

let _ =
Printf.printf "# gaussian with sigma=%g\n" sigma ;
for i=1 to 10 do
let x = Gsl_cdf.ugaussian_P 3. in

Printf.printf "%+.7f\n" x
done

C:\ocaml\gsl\ocamlgsl-0.4.0\examples>ocamlopt -cclib
gsl.lib -I ..
bigarray.cmxa
..\gsl.cmxa bs.ml
File "bs.ml", line 23, characters 12-31:
Unbound value Gsl_cdf.ugaussian_P

Do you have any ideas what I do wrong?

I am using my own Windows 1.6 build of GSL that I
build yesterday.

Regards
Lars Schouw

BTW. I asked this on the ocaml_beginners mailing list
and they told me this is to Windows specific.

BTW2: From the ocaml_beginner mailing list
It works on Debian if you do
/usr/lib# ln -s libgsl.so.0 libgsl.so
/usr/lib# ln -s libgslcblas.so.0 libgslcblas.so
/usr/lib# ldconfig
> Then I compiled your second example with:
>
> $ ocamlopt -cclib -lgsl -I +gsl gsl.cmxa test.ml -o
test
and ran it with:
> >
> > $ ./test
> > # gaussian with sigma=3
> > +0.9986501
> > +0.9986501
> > +0.9986501
> > +0.9986501
> > +0.9986501
> > +0.9986501
> > +0.9986501
> > +0.9986501
> > +0.9986501
> > +0.9986501

BTW3: If I try this I get an unbound module error
C:\ocaml\gsl\ocamlgsl-0.4.0\examples>ocamlopt -cclib
-lgsl -I +gsl
> gsl.cmxa bs.ml -i bs
> File "bs.ml", line 2, characters 0-12:
> Unbound module Gsl_fun


		
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