using gamultiobj with 24 variables
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My fitness function (fit_KotPol) calculate two values for 24 variables. I want to define the inti
fitnessfcn = @fit_KotPol;
nvars = 24;
lb=[22.2 22.2 22.2 22.2 22.2 22.2 22.2 22.2 22.2 22.2 22.2 22.2 0 0 0 0 0 0 0 0 0 0 0 0];
ub=[172.9 172.9 172.9 172.9 172.9 172.9 172.9 172.9 172.9 172.9 172.9 172.9 140 140 140 140 140 140 140 140 140 140 140 140];
A = [ ]; b = [ ]; Aeq = [ ]; beq = [ ];
startTime = tic;
options = optimoptions('gamultiobj','UseParallel',true,'PlotFcn',{@gaplotpareto,@gaplotscorediversity});
[x,fval,exitflag,output] = gamultiobj(fitnessfcn,nvars,lb,ub,options);
stopTime = toc(startTime);
I got the error
Error using gamultiobj (line 281)
GAMULTIOBJ requires the following inputs to be of data type double: 'Aeq'.
Help me to use the gamultiobj
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Answers (2)
Stephan
on 23 Sep 2018
Edited: Stephan
on 23 Sep 2018
Hi,
the input syntax for gamultiobj has no option for passing lb and ub to gamultiobj without also passing A,b Aeq, beq. You defined them all, but you dont use them in your function call.
Use:
[x,fval,exitflag,output] = gamultiobj(fitnessfcn,nvars,A,b,Aeq,beq,lb,ub,options);
Best regards
Stephan
16 Comments
Walter Roberson
on 28 Sep 2018
The number of pareto points returned by gamultiobj is not known in advance.
x will be m by nvars, so something by 24 in your case, where m is however many pareto points the function detected during the limits it was given on execution.
Thushara De Silva
on 27 Sep 2018
Edited: Walter Roberson
on 28 Sep 2018
1 Comment
Walter Roberson
on 28 Sep 2018
When you supply a population matrix in the options, if the number of rows you provide is less than the population size, then it will initialize the remaining rows randomly.
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