Clear Filters
Clear Filters

How do you get fval with iterations out of ga and particleswarm (genetic algorithms and particle swarm)

2 views (last 30 days)
Currently I have:
[s_best,fval_best] = ga(fhandleformatlab,d_fun,[],[],[],[],lb_fun, ub_fun,[],[],options);
[s_best,fval_best,~,~] = particleswarm(fhandleformatlab,d_fun,lb_fun, ub_fun,options);
But I want to save the result of fval at each iteration/generation to an array, so I can analyse how fast the algorithm converges to optimum. I cannot see how to get this output into an array in the matlab workspace.
Note - I do not merely want to display the output, which I can do. I cannot figure out how to output it to an array in the workspace so I can plot it, analyse it etc.

Accepted Answer

Walter Roberson
Walter Roberson on 1 Sep 2015
You would initialize an array and you would have the output function append to the array each time it was called. I recommend using nested functions for this purpose so that you avoid the temptation of global variables.
JMP Phillips
JMP Phillips on 4 Sep 2015
Hi Walter, I just use the evalin function to append it to a variable in the calling function or workspace each iteration.

Sign in to comment.

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!