How to edit matlab toolbox globaloptim

Question

kukuh widarsono 2022-1-25

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https://ww2.mathworks.cn/matlabcentral/answers/1635700-how-to-edit-matlab-toolbox-globaloptim

评论： kukuh widarsono 2022-1-27

good day everyone

I use the matlab toolbox script (ga toolbox). And I want to see the process and result step by step. to see this process or result, I must editing the program of ga.

but, when I already edit and continue to save this program, appear report like that " error writing ga.m...C:\program files\MATLAB\....bla bla bla...acces denied".

how to solved this problem.

thanks

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Answer 1

Steven Lord 2022-1-25

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https://ww2.mathworks.cn/matlabcentral/answers/1635700-how-to-edit-matlab-toolbox-globaloptim#answer_881595

To get information on the progress of the solver change the Display, OutputFcn, and/or PlotFcn options when you call the ga function. You don't need to modify the ga function at all.

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Steven Lord 2022-1-26

I strongly recommend against modifying functions written by MathWorks. A change you think should be harmless (or that you make accidentally) could make the function stop working or make it return incorrect results.

If you need to see the process that the function follows you could set a breakpoint in the function and use the debugging capabilities to trace the execution. That would let you look at variables without making permanent changes to the file. This won't work for built-in functions for which we don't distribute the source code, but if I recall correctly ga is implemented as a regular MATLAB function file.

kukuh widarsono 2022-1-27