arguments or properties for each class? efficiency?

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marilia15 2012-4-11

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Hi, I have the main program with a property X which is a handle object with lot of properties. The main program creates a lot of instances of other class (genetic algorithm) and all these instances use the same X from main program. What is more efficient, use properties or arguments?

a)each specie include X as a own property, so all the methods of the specie can access easily to all the properties of X.

b) main program call methods of each specie using properties of X as arguments.

which option use more memmory? which option is faster?

Thanks

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Answer 1

Daniel Shub 2012-4-11

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https://ww2.mathworks.cn/matlabcentral/answers/35121-arguments-or-properties-for-each-class-efficiency#answer_44073

Loren had a recent post about this on her blog:

http://blogs.mathworks.com/loren/2012/03/26/considering-performance-in-object-oriented-matlab-code/

I have not fully digest that post, nor do I fully understand the inefficiencies of MATLAB OOP, but I think the more your can reduce calls to properties of objects, the better off you are.