[Cmpl] Error
Prof. Dr. Mike Steglich
mike.steglich at stegger.net
Sat Jun 28 11:45:27 EDT 2014
Hi Oscar,
sum{i in FARMS, Please use : instead of the comma
This should work if this constraint is to be formulated one times:
Constraint: sum{i in FARMS, j in FARMS: XS[i,j] } >= sum{ i in FARMS: Alpha*Q[i] } ;
If you want to formulate a couple of constraints using a loop it should be formulated like this:
Constraint { index in set : sum{i in FARMS, j in FARMS: XS[i,j] } >= sum{ i in FARMS: Alpha*Q[i] } ; }
I hope that works. I did not test it.
Cheers,
Mike
Am 28.06.2014 um 17:00 schrieb Oscar Augusto Téllez Sánchez <oskarts at gmail.com>:
> Thank you!
>
> this is my new challenge…i don´t understand the error in this constrain, i have tried in different ways but nothing… (alpha is a constant like 1)
>
>
> Constraint {sum{i in FARMS, j in FARMS: XS[i,j]} >= sum{i in FARMS,Alpha*Q[i]};}
>
> thank you in advance
>
> Oscar
>
> this is the program just in case...
>
>
> #%data biomass-data-Small.cdat : SIZE set
> %data biomass-data-Small.cdat : FARMS set, SP, TC, PC, Q[FARMS], d[FARMS,FARMS], gamma[FARMS], CF, Alpha, K
> variables:
> #Quantity of waste treated at plant i
> X[FARMS]: real[0..];
> #Quantity of waste send from farm j to plant i
> XS[FARMS,FARMS]: real[0..];
> #1 if plant i is installed with capacity k
> Y[FARMS]: binary;
> #1 if we send waste from farm j to plant i
> W[FARMS,FARMS]: real[0..];
>
>
> objectives:
> Profit: sum{i in FARMS: (SP-PC)* X[i] }
> - sum{i in FARMS, j in FARMS : TC * XS[i,j] * d[i,j]}
> - sum{i in FARMS : CF*Y[i] } ->max;
>
> constraints:
>
> # you cannot send more than farm´s capacity-
> farms {j in FARMS: sum{i in FARMS: XS[i,j]} <= sum{i in FARMS:Q[j]*W[i,j]};}
>
> #A farm can only send to one plant-
> exclusivity {j in FARMS : sum{i in FARMS: W[i,j]} <= 1;}
>
> #Maximum one plant per site-
> nPlants {i in FARMS : Y[i] <= 1;}
>
> #You can send to i only if there is a plant there-
> cond1 {i in FARMS,j in FARMS: W[i,j] <= Y[i];}
>
> #Production capacity-
> #ProductionCap: X[] <= K*Y[];
> ProductionCap {i in FARMS: X[i] <= K*Y[i];}
>
> # Equivanlence between what is send (waste) and what is produce (methane)-
> equivalence {i in FARMS: X[i] = sum{j in FARMS: gamma[i]*XS[i,j]};}
>
> Constraint {sum{i in FARMS, j in FARMS: XS[i,j]} >= sum{i in FARMS,Alpha*Q[i]};}
>
>
> On Jun 2, 2014, at 4:24 PM, Mike Steglich <mike.steglich at th-wildau.de> wrote:
>
>> Hallo Oscar,
>>
>> X[farms] is defined as variable vector, but in the constraint
>>> farms {j in FARMS: sum{i in FARMS: X[i,j]} <= sum{i in FARMS:Q[j]*W[i,j]};}
>> used as variable matrix X[i,j]. Could it be possible that you wanted to use the matrix XS in this constraint?
>>
>> Cheers,
>>
>> Mike
>>
>>
>> Am 01.06.2014 um 23:36 schrieb Oscar Augusto Téllez Sánchez <oskarts at gmail.com>:
>>
>>> Thank you very much!
>>>
>>> i have found these and some errors more. however, with the last one…i give up, any idea? i have tried many ways but nothing
>>>
>>> create model instance ...
>>> error (compiler): file biomass.cmpl line 21: array dimensions don't match
>>> CMPL model generation - failed
>>>
>>> here is new version of program:
>>>
>>> %data biomass-data.cdat : FARMS set, SIZE set, SP,TC,PC,CF[SIZE], Q[FARMS], K[SIZE],d[FARMS,FARMS], gamma[FARMS]
>>>
>>> variables:
>>> #Quantity of waste treated at plant i
>>> X[FARMS]: real[0..];
>>> #Quantity of waste send from farm j to plant i
>>> XS[FARMS,FARMS]: real[0..];
>>> #1 if plant i is installed with capacity k
>>> Y[FARMS,SIZE]: binary;
>>> #1 if we send waste from farm j to plant i
>>> W[FARMS,FARMS]: real[0..];
>>>
>>> objectives:
>>> Profit: sum{i in FARMS: (SP-PC)* X[i] }
>>> + sum{i in FARMS, j in FARMS : TC * XS[i,j] * d[i,j]}
>>> + sum{i in FARMS, k in SIZE : Y[i,k] * CF[k] } ->max;
>>>
>>> constraints:
>>>
>>> # you cannot send more than farm´s capacity
>>> farms {j in FARMS: sum{i in FARMS: X[i,j]} <= sum{i in FARMS:Q[j]*W[i,j]};}
>>>
>>> #A farm can only send to one plant
>>> exclusivity {i in FARMS : sum{j in FARMS: W[i,j]} = 1;}
>>>
>>> #Maximum one plant per site
>>> nPlants {i in FARMS : sum{k in SIZE: Y[i,k]} <= 1;}
>>>
>>> #You can send to i only if there is a plant there
>>> cond1 {i in FARMS: sum{j in FARMS: W[i,j]} <= sum{k in SIZE: Y[i,k]};}
>>>
>>> #Production capacity
>>> ProductionCap: X[] <= K[]*Y[,];
>>>
>>> # Equivanlence between what is send (waste) and what is produce (methane)
>>> equivalence {i in FARMS: gamma[i]*X[i] = sum{j in SIZE: XS[i,j]};}
>>>
>>> thank you in advance
>>>
>>> Oscar
>>>
>>> On Jun 1, 2014, at 9:35 PM, Mike Steglich <mike.steglich at berlin.de> wrote:
>>>
>>>> Hi Oscar,
>>>>
>>>> In line 16 you specified K as index in the sum header but k is used within the sum body. The same issue is happened in line 20: k defined in the sum header but K is used in the body.
>>>>
>>>> Cheers,
>>>>
>>>> Mike
>>>>
>>>> Am 01.06.2014 um 16:45 schrieb Oscar Augusto Téllez Sánchez <oskarts at gmail.com>:
>>>>
>>>>> Good day,
>>>>>
>>>>> here is my problem… when i run my program this is the message
>>>>>
>>>>> create model instance ...
>>>>> error (compiler): file biomass.cmpl line 16: syntax error, unexpected ASSIGN_ITER, expecting ':'
>>>>> error (compiler): file biomass.cmpl line 20: syntax error, unexpected ASSIGN_ITER, expecting ':'
>>>>> error (compiler): file biomass.cmpl line 20: syntax error, unexpected '}', expecting end of file
>>>>> CMPL model generation - failed
>>>>>
>>>>> I am following the standard and i don´t know why is asking me to put (:) any idea how to solve it? (in bold are the referred lines)
>>>>>
>>>>> thank you in advance ;) my code is below
>>>>>
>>>>> Oscar
>>>>>
>>>>> Program:
>>>>> %data biomass-data.cdat : FARMS set, SIZE set, SP,TC,PC,CF[SIZE], Q[FARMS], K[SIZE],d[FARMS,FARMS], gamma[FARMS]
>>>>>
>>>>> variables:
>>>>> #Quantity of waste treated at plant i
>>>>> X[FARMS]: real[0..];
>>>>> #Quantity of waste send from farm j to plant i
>>>>> XS[FARMS,FARMS]: real[0..];
>>>>> #1 if plant i is installed with capacity k
>>>>> Y[FARMS,SIZE]: binary;
>>>>> #1 if we send waste from farm j to plant i
>>>>> W[FARMS,FARMS]: real[0..];
>>>>>
>>>>> objectives:
>>>>> Profit: sum{i in FARMS: (SP-PC)* X[i] }
>>>>> + sum{i in FARMS, j in FARMS : TC * XS[i,j] * d[i,j]}
>>>>> + sum{i in FARMS, K in SIZE : Y[i,k] * CF[k] } ->max;
>>>>>
>>>>> constraints:
>>>>> #Maximum one plant per site
>>>>> nPlants {i in FARMS : sum{k in SIZE: Y[i,K]} <= 1;}
>>>>>
>>>>> #A farm can only send to one plant
>>>>> exclusivity {i in FARMS : sum{j in FARMS: W[i,j]} = 1;}
>>>>>
>>>>> #You can send to i only if there is a plant there
>>>>> cond1 {i in < FARMS: sum{j in FARMS: W[i,j]} <= sum{k in SIZE: Y[i,K]};}
>>>>>
>>>>> # Equivanlence between what is send (waste) and what is produce (methane)
>>>>> equivalence {i in < FARMS: gamma[i]*X[i] = sum{j in SIZE: XS[i,j]};}
>>>>>
>>>>> #Production capacity
>>>>> ProductionCap {i in < FARMS: x[i] <= sum{k in SIZE: Y[i,K]*KP[K]};}
>>>>>
>>>>> # you cannot send more than farm´s capacity
>>>>> farmsCapacity {j in < FARMS: sum{i in FARMS: X[i,j]} <= sum{i in FARMS: W[i,j]*Q[j]};}
>>>>>
>>>>>
>>>>>
>>>>>
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