Search code examples
ampl

ampl can't import random external function

I'm using the following code in AMPL 

load amplgsl.dll;
function gsl_ran_binomial;

I get the error:

lp.mod, line 6 (offset 138):

Function gsl_ran_binomial is random.
context:  function  >>> gsl_ran_binomial; <<<**

Platform: Windows

The approach above works fine with other functions e.g. gsl_ran_binomial_pdf

Solution

  • gsl_ran_binomial should be declared with the random attribute, because it is a random number generator:

    function gsl_ran_binomial random;