I want to test my model , I need to test it in some data , I want to generate data , in fact I want to have 125 different parameter from 0 to 10000.
For example , in be
Try this:
Set       I     /0*300/
          picks /p1*p4/;
Scalar    pick;
Parameter MyParameter(I);
MyParameter(I) = 0;
loop(picks,
  pick = uniformInt(1, card(I));
* Make sure to not pick the same one twice
  while(sum(I$(pick=ord(I)),MyParameter(I))=1,
    pick = uniformInt(1, card(I))
    Display 'here';
  );
  MyParameter(I)$(pick=ord(I))=1;
);
Display MyParameter;