[Help-glpk] setting lower bound on variable with LPM

[Sebastien . deMentendeHorne]

Hi,

I have a problem setting the lower bound of a set of variables:
e.g.

sets I = (I1, I2);

variables x[I],y;

x[i].lo = nil;          KO !!
y.lo = nil;                     OK

How do I fix the lower bound on x ?

Moreover, is it possible to define sets with integer elements like
sets J = (1,2);
and better with a range like
sets J = 1..2;
?

TX for any help

Sébastien de Menten               |    ELECTRABEL 
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