topic Re: Need Help with my Code in Mathematical Optimization, Discrete-Event Simulation, and OR

Need Help with my Code

jfm00 — Mon, 08 May 2017 06:59:24 GMT

Hello,

Please, can anyone help me with my code? I am getting always "semantic error".

Thank you

Re: Need Help with my Code

Kurt_Bremser — Mon, 08 May 2017 07:19:33 GMT

Do not use Office Files for posting code. Those files are often used to transport malware and are therefore blocked by many, if not most, corporate firewalls.

The proper way to post SAS code is the "little running man" icon. It preserves formatting and gives a look similar to the SAS Enhanced Editor.

For logs and non-SAS code, use the {i} icon.

Need Help with my Code

jfm00 — Mon, 08 May 2017 08:38:11 GMT

Hi,

When I run this code, I get errors. Can anyone help me correct my code? Thanks

In this problem, I have fixed costs per plant and per product and also minimum and maximum production per plant and per product.

Proc optmodel;
set Plant = {'P1','P2','P3','P4','P5'};
set Product = {'T1','T2','T3','T4'};

number Supply {Plant} = [615 635 650 573 634] ;
number Demand {Product} = [510 450 458 521];
number VariaCost {Plant,Product} = [
22.45 24.05 23.2 25
21.85 24.35 24.25 24.8
25.15 24.9 25.45 24.2
25       25.75 21.75 21.15
21.6 23.6 21.7 24.05];
number FixedCost {Plant,Product} = [
971    429    1138 1001
1188 845 485 1336
529     975    1227 1280
1325 1164 485   302
1297 979 536 769];
number M = 1000000;
number MinUse {Plant,Product} = [
146 53   125 147
105 104 125 122
141 53   128 50
69   132 89   57
95   84   108 116];
number MaxUse {Plant,Product} = [
283 346 328 306
356 366 278 336
371 373 347 355
282 340 346 332
334 332 295 348];

var X {Plant,Product} integer >= 0;
var Y {Plant} binary;

minimize TotalCost = sum {i in Plant} ( sum {j in Product} ( X[i,j]*VariaCost[i,j] ) + Y[i]*FixedCost[i,j] );

con SupplyConst {i in Plant} : sum {j in Product} X[i,j]<=Supply[i];
con DemandConst {j in Product} : sum {i in Plant} X[i,j]>=Demand[j];
con Producing {i in Plant} : sum {j in Product} X[i,j] <= M * Y[i];
con UseMinimum {i in Plant} : sum {j in Product} (sum {i in Plant}) X[i,j] >= MinUse[i,j] * Y[i];
con UseMaximum {i in Plant} : sum {j in Product} (sum {i in Plant}) X[i,j] <= MaxUse[i,j];

solve;

print TotalCost X;

quit;

Re: Need Help with my Code

Kurt_Bremser — Mon, 08 May 2017 08:44:23 GMT

When you need help with a SAS error, post the log (of the whole step!). And as I already stated(!), use the proper icons for posting code and log.

If the ERROR could be caused by the data, post example data in a data step as described here.

Re: Need Help with my Code

Kurt_Bremser — Mon, 08 May 2017 08:50:00 GMT

PS a quick google search for "proc optmodel semantic error" gave me this result:

Input Data for the Network Solver :: SAS/OR(R) 13.2 User's Guide: Mathematical Programming

So you might have a null graph in your data.

Maxim 6: Google is your friend.

Re: Need Help with my Code

Ksharp — Mon, 08 May 2017 12:08:55 GMT

Plz post it at OR forum. @RobPratt is there.

Re: Need Help with my Code

Kurt_Bremser — Mon, 08 May 2017 12:13:37 GMT

I moved the topic to the OR community.

Re: Need Help with my Code

RobPratt — Mon, 08 May 2017 14:43:39 GMT

See this related post from December.