Re: [Fwd: Help please]

[Heinrich Schuchardt]

On 10/17/20 7:24 PM, Andrew Makhorin wrote:
> -------- Forwarded Message --------
> From: Manuel Castro <manuel.joao.castro@icloud.com>
> To: help-glpk@gnu.org
> Subject: Help please
> Date: Sat, 17 Oct 2020 17:02:16 -0000
>
>> Hi there,
>>
>> I have the following constraint:
>>
>>
>> subject to linctr20 {i in 1..365}: 
>>    sum {j in (i - 1) * 48 + 1..(i * 48)} FlexibleLoadIncrease[j], <=

The comma should be removed.

>> FlexibleLoadEnergyRating * LoadPowerProfile[j];

j is the index for the sum on the left side. i is the index of the
constraint. So j cannot be used as index on the right side. Did you mean i?

Best regards

Heinrich

>>
>>
>> FlexibleLoadIncrease is a decision variable
>> whilst FlexibleLoadEnergyRating and LoadPowerProfile are param.
>>
>> I get the following error message:
>>
>> \Local\Temp\SolverStudio cyzbbe4o\model.txt:147: j not defined
>> Context: ...[ j ] , <= FlexibleLoadEnergyRating * LoadPowerProfile [ j
>> ]
>> MathProg model processing error
>>
>> I have spent hours and hours trying to resolve this by going through
>> the forums but couldn't find a solution. My last option was to contact
>> you. Any help would be appreciated. Many thanks.
>>
>> Kind regards,
>> MAnuel.
>