topic How to define one binary variable value explicitely among a group of binary variables in Mathematical Optimization, Discrete-Event Simulation, and OR

How to define one binary variable value explicitely among a group of binary variables

pmoovala0 — Sat, 22 Apr 2017 22:27:49 GMT

I need to explicitely define binary variable openstatus for WH1 as 1 (in the below code)

how to define that

Proc optmodel;
set WH= {"WH1","WH2","WH3","WH4","WH5"};
set WS= {"WS1","WS2","WS3"};
Number FixedCost {WH}=[
10000  20000  15000  17000  13000];
Number TransCost {WH}=[
9  7  8  7.5  8.5];
Number Distance{WH,WS}=[
85  120  90
45  150  85
75  120  95
60  80   90
110 65   95];
var openstatus{WH1}=1;
var openstatus{WH} binary;
minimize operatingCost=
 sum{w in WH}(FixedCost[W]+40*TransCost[w]*sum{s in WS}distance[w,s])*openstatus[w];
constraint sum{w in WH}openstatus[w]=2;
solve;
print OperatingCost openstatus;

Re: How to define one binary variable value explicitely among a group of binary variables

RobPratt — Sun, 23 Apr 2017 01:32:09 GMT

Use one VAR statement to declare the whole set of variables, and then use the FIX statement to fix one variable's value.

Re: How to define one binary variable value explicitely among a group of binary variables

pmoovala0 — Mon, 24 Apr 2017 11:12:58 GMT

Thank You

Partha