| Thank you The issue has been solved, your suggestions have worked. Regards Victor --- El lun 2-jul-12, Andrew Makhorin <address@hidden> escribió:
De: Andrew Makhorin <address@hidden>
Asunto: Re: [Help-glpk] Problem with min command
A: "Victor Gutierrez" <address@hidden>
Cc: address@hidden
Fecha: lunes, 2 de julio de 2012, 12:52
> > Right now the code I have is the following, and the same error is
> > presented:
> >
> > set SCHEDULES := 1..288 ;
> >
> > param Temp {k in SCHEDULES} := if k=1 then TempIN_Meas[k] else
> > (if
(TempIN_Meas[1]<TempSPDN[1] or
> > TempIN_Meas[1]>TempSPUP[1]) then (Temp[k-1] + 5*(BetaAC * ActLev[k] +
> > OutTemp[k]*GamaAC))/(1+5*GamaAC));
> >
> > param index {k in SCHEDULES} := if (Temp[k]<TempSPDN[k] or
> > Temp[k]>TempSPUP[k]) then 0 else k;
> >
> > param index1 := if card(SCHEDULES) = 0 then 1 else (min{k in
> > SCHEDULES: index[k] != 0} k);
> >
>
> Hmm... Try the following:
>
> param index1 := if card(SCHEDULES) = 0 then 1 else
> (min{k in (SCHEDULES union { 0 }): index[k] != 0} k);
Don't try. The following code works:
set S := { 1, 2, 3 };
set T := { };
display if card(S) = 0 then 0 else (min{k in S}k);
display if card(T) = 0 then 0 else (min{k in T}k);
so your code also should work. Which the error
message did you get?
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