Originally posted by: sandeepsinghchauhan

I have C = { CANDY1 CANDY2 CANDY3 CANDY4}

          PRO = [{1 2 3} {4 5} {6 7 8 9} {10 11 12 13}]

Xtotal is an expression

forall (p in C) {
  sum(s in PRO[p])Xtotal[s] == one expression;
}

ERROR

Cannot use type int for <!pr:int,sa:float>.  

please help

Hi,

{string} C = { "CANDY1"," CANDY2","CANDY3","CANDY4"};

 {int} PRO[C] = [{1,2 ,3} ,{4, 5} ,{6, 7, 8, 9}, {10, 11, 12, 13}] ;
 
 
dvar int x;
dexpr int Xtotal[i in 1..13]=x;

subject to
{
forall (p in C) {
  sum(s in PRO[p])Xtotal[s] >= 1;
}
}

works fine

regards

Originally posted by: sandeepsinghchauhan

Xtotal is a tuple set of <!pr:int,sa:float>

Ok so instead of

s in PRO[p])Xtotal[s]

you should write

s in PRO[p])Xtotal[s].pr

regards

Originally posted by: sandeepsinghchauhan

Thanks for reply but getting same error

forall (p in C) {

sum(s in PRO[p]) Xtotal[s].pr  >= sum(o in O)S[<t,o>];

}

same ERROR
Cannot use type int for <!pr:int,sa:float>.  

please help

Ok so then you should try

{string} C = { "CANDY1"," CANDY2","CANDY3","CANDY4"};

 {int} PRO[C] = [{1,2 ,3} ,{4, 5} ,{6, 7, 8, 9}, {10, 11, 12, 13}] ;
 
 tuple t
 {
  key int pr;
  float sa;
 }
 
 {t} Xtotal={<i,i/2> | i in 1..20};
 
dvar int x;

subject to
{
forall (p in C) {
  sum(s in PRO[p])item(Xtotal,s).sa >= 1;
}
}

regards

PS: have you had a look at the support channel https://www.youtube.com/user/OptimizationSupport ?

Originally posted by: sandeepsinghchauhan

The function item(dexpr float[Pr],int) does not exist.   

please help :(

Hi,

the example I gave you works fine.

I cannot guess what you wrote.

So in order to get some help, my suggestion is to post your model. And then somebody could help you.

Regards

Originally posted by: sandeepsinghchauhan

{string} C = { "CANDY1"," CANDY2","CANDY3","CANDY4"};

 {int} PRO[C] = [{1,2 ,3} ,{4, 5} ,{6, 7, 8, 9}, {10, 11, 12, 13}] ;
 
 tuple t
 {
  key int pr;
  float sa;
 }

{t} PR= ...;

dvar float x[D];

dexpr float Xtotal[p in Process] = sum(some expression)X[D] ;

subject to
{
forall (p in C) {
  sum(s in PRO[p])item(Xtotal,s).sa >= 1;
}
}

ERROR

The function item(dexpr float[Pr],int) does not exist. 

Hi

{string} C = { "CANDY1"," CANDY2","CANDY3","CANDY4"};

 {int} PRO[C] = [{1,2 ,3} ,{4, 5} ,{6, 7, 8, 9}, {10, 11, 12, 13}] ;
   
 {int} D=asSet(1..20);
 {int} Process=asSet(1..20);

dvar float x[D];

dexpr float Xtotal[p in Process] = sum(i in D)x[i]+p ;

subject to
 {
 forall (p in C) {
   sum(s in PRO[p])(Xtotal[s]) >= 1;
 }
 }

works fine.

Are you a commercial user or a researcher ?

regards

Originally posted by: sandeepsinghchauhan

Thanks for your valuable reply

I am researcher

Originally posted by: sandeepsinghchauhan

sorry it p in Pr instead of p in Process

dexpr float Xtotal[p in Pr] = sum(i in D)x[i]+p ;

-----------------------------------------------------------------------------------------------------

In the example I gave you, no item was used:

sum(s in PRO[p])(Xtotal[s]) >= 1;

regards

Originally posted by: sandeepsinghchauhan

yes but Xtotal is an dexpr used  by Process (asSet(1..20)) which is a set and in my actual problem Xtotal used by PR which is a tuple

{string} C = { "CANDY1"," CANDY2","CANDY3","CANDY4"};

 {int} PRO[C] = [{1,2 ,3} ,{4, 5} ,{6, 7, 8, 9}, {10, 11, 12, 13}] ;

dvar float x[D];

tuple t
 {
  key int pr;
  float sa;
 }

{t} PR= ...;

dexpr float Xtotal[p in PR] = sum(some expression)X[D] ;

subject to
{
forall (p in C) {
  sum(s in PRO[p])item(Xtotal,s).sa >= 1;
}
}

ERROR

The function item(dexpr float[Pr],int) does not exist. 

Originally posted by: sandeepsinghchauhan

I can't change my Xtotal because it affect my other variables also

Hi,

{string} C = { "CANDY1"," CANDY2","CANDY3","CANDY4"};

 {int} PRO[C] = [{1,2 ,3} ,{4, 5} ,{6, 7, 8, 9}, {10, 11, 12, 13}] ;

 

tuple t
  {
   key int pr;
   float sa;
  }

{t} PR={<i,i/2> | i in 1..20};

dexpr float Xtotal[p in PR] = p.sa ;

subject to
 {
 forall (p in C) {
   sum(s in PRO[p]) sum(p2 in PR:p2.pr==s)Xtotal[p2] >= 1;
 }
 }

works fine and it can help you with the syntax

regards

Originally posted by: sandeepsinghchauhan

Thanks