topic Re: Genetic algorithm, multi objective example in Mathematical Optimization, Discrete-Event Simulation, and OR

Genetic algorithm, multi objective example

linglihe — Wed, 24 Jul 2013 14:42:23 GMT

Hi, all

I'm doing a multi objective optimization using Genetic algorithm, the only documentation I found is here:

There are three other examples, but all about single object.

Is there an example of multi-objective somewhere I can use?

Any comment and suggestion is welcome. Thanks!

Lingli

RobPratt — Wed, 24 Jul 2013 14:57:02 GMT

The third example actually uses two objectives: the original quadratic objective and the constraint violation.

You might also be interested in the new OPTLSO procedure available in SAS 9.4 (SAS/OR 12.3):

Multi-objective support in OPTLSO is planned for an upcoming release.

linglihe — Wed, 24 Jul 2013 15:15:47 GMT

Hi, Rob:

Thanks!

I'm pasting the SAS code from this example to SAS 9.2 editor:

but I cannot run this example successfully, I see this error in log:

The statement was:

1 (555:7) call ReadCompare(selected,2,2, member2);

ERROR: Error reported in function 'ContinueFor' in statement number 16 at line 611 column 5.

The statement was:

1 (611:5) call ContinueFor(500);

ERROR: Execution terminating because of previous errors.

NOTE: The SAS System stopped processing this step because of errors.

NOTE: There were 9 observations read from the data set WORK.LINCON.

NOTE: There were 13 observations read from the data set WORK.BOUNDS.

WARNING: The data set WORK.OUT may be incomplete. When this step was stopped there were 0

observations and 0 variables.

WARNING: Data set WORK.OUT was not replaced because this step was stopped.

NOTE: PROCEDURE GA used (Total process time):

real time 0.68 seconds

cpu time 0.56 seconds

Do you mind to help paste the code to your editor and run it, to see if there is a quick fix? Thanks!

Lingli

I also attached the code I pasted from the webpage.

RobPratt — Wed, 24 Jul 2013 18:32:25 GMT

Try setting NOVALIDATE=3 on the PROC GA statement.

linglihe — Thu, 25 Jul 2013 13:10:19 GMT

It worked, thanks! so it was a version issue.