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Attempt to refrence field of non structured array

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Sudarshan
Sudarshan il 12 Nov 2012
Chiuso: MATLAB Answer Bot il 20 Ago 2021
Hello,
I am new to MATLAB and I am trying to use the MOGA tool for optimization. When I run the optimization I get the following error
??? Attempt to reference field of non-structure array.
Error in ==> gamultiobjsolve at 28
state.Generation = state.Generation + 1;
Error in ==> gamultiobj at 240
[x,fval,exitFlag,output,population,scores] = gamultiobjsolve(FitnessFcn,nvars, ...
It would be great if you could help me out.

Risposte (1)

Jan
Jan il 12 Nov 2012
Please post how you call the function. It seems like the varaible "state" should be a struct, but it has another type.
A general method to identify such problems is using the debugger:
dbstop if error
Then start the program again and Matlab stops, when the error occurres. Now you can inspect the calling tree and the values of the locally used variables.
  3 Commenti
Jan
Jan il 12 Nov 2012
I do neither know the MOGA tool, nor can I guess what "use for" means in this case. Did you try to debug your code already? You know, debugging is a very important tool for creating programs and it has much more power than a forum.
Sudarshan
Sudarshan il 12 Nov 2012
Thanks for ur help... I will try to do tat...

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