Decision Optimization

Originally posted by: fizazul

Dear all..
i dunno what wrong with my coding.and i dunno how to correct the error.is anyone can help me?

int c = ...; range customer = 1..c; 

float sigma[customer]=...; 

float alpha[customer]=...; 

int hd[customer]=...; 

int hw[customer]=...; 

int S[customer]=...; 

int Ab[customer]=...; 

float beta=...; 

int Av=...; 

int Ar=...; 

int hv=...; 

int hr=...; 

int P=...; 

float T[customer];   
//decision variables dvar 

int n_r; dvar 

int n_v[customer]; dvar 

int n_b[customer]; dvar 

float q1[customer];   
//objective function maximize sum(i in customer)(-(Av+n_r*Ar)/(n_v[i]*n_b[i]*T[i])) -sum(i in customer)(hv*((n_b[i]*q1[i])/2)*((2-n_v[i])*q1[i]/(P*T[i])+(-1+n_v[i])-hr*(n_v[i]*n_b[i]*q1[i])/(2*T[i]*n_r*P))) +sum(i in customer)(sigma[i]*(q1[i])/(T[i])-(1/(T[i]))*(((Ab[i])/(n_b[i]))+(S[i])) +hd[i]*((1-beta)/(2-beta))*q1[i]+(hw[i]/2)*(n_b[i]-1)*q1[i]) ; subject to 
{ ct1: forall(i in customer)q1[i]>=1; ct2: forall(i in customer)q1[i]<=500; ct3: forall(i in customer)T[i]==((q1[i])^(1-beta)) /(alpha[i]*(1-beta));   
}

and here is the data;
{code}
c=2;
sigma=30,20;
alpha=100,130 ;
hd=20,18;
hw=5,8;
S=25,30;
Ab=100,500;
beta=0.1;
Av=400;
Ar=200;
hv=3;
hr=5;
P=4500;
(code)
#DecisionOptimization
#OPLusingCPLEXOptimizer

Hi,

what you do is not possible with CPLEX. (Not linear)
With CP Optimizer, it would work better:

using CP;   

int c = ...; range customer = 1..c; 

float sigma[customer]=...; 

float alpha[customer]=...; 

int hd[customer]=...; 

int hw[customer]=...; 

int S[customer]=...; 

int Ab[customer]=...; 

float beta=...; 

int Av=...; 

int Ar=...; 

int hv=...; 

int hr=...; 

int P=...; 

float T[customer]; 
//decision variables dvar 

int n_r; dvar 

int n_v[customer]; dvar 

int n_b[customer];   dvar 

int q2[customer] in -1000000..1000000; dexpr 

float q1[c in customer]=q2[c]/1000;; 
//objective function maximize sum(i in customer)(-(Av+n_r*Ar)/(n_v[i]*n_b[i]*T[i])) -sum(i in customer)(hv*((n_b[i]*q1[i])/2)*((2-n_v[i])*q1[i]/(P*T[i])+(-1+n_v[i])-hr*(n_v[i]*n_b[i]*q1[i])/(2*T[i]*n_r*P))) +sum(i in customer)(sigma[i]*(q1[i])/(T[i])-(1/(T[i]))*(((Ab[i])/(n_b[i]))+(S[i])) +hd[i]*((1-beta)/(2-beta))*q1[i]+(hw[i]/2)*(n_b[i]-1)*q1[i]) ; subject to 
{ ct1: forall(i in customer)q1[i]>=1; ct2: forall(i in customer)q1[i]<=500; ct3: forall(i in customer)T[i]==((q1[i])^(1-beta)) /(alpha[i]*(1-beta)); 
}

Regards
#DecisionOptimization
#OPLusingCPLEXOptimizer