Deleting required object properties data for calculating dependent properties data without deleting the data in dependent properties.

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BdS 2018-9-14

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https://ww2.mathworks.cn/matlabcentral/answers/418994-deleting-required-object-properties-data-for-calculating-dependent-properties-data-without-deleting

编辑： Greg 2018-9-15

Hi everybody. I created a class using the knowledge in https://ch.mathworks.com/help/matlab/matlab_oop/example-representing-structured-data.html Let me take the example of the above mentioned link and ask my question:

... properties (Dependent) Modulus end

methods function modulus = get.Modulus(obj) ind = find(obj.Strain > 0); modulus = mean(obj.Stress(ind)./obj.Strain(ind)); end end

My Question: Only when I add the data to the properties: Stress, Strain the property Modulus is shown/calculated. This is fine. Is there a method on how to, after getting the result of Modulus, delete the data within the properties Stress and Strain whithout deleting the data in the property Modulus?

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Greg 2018-9-15

编辑：Greg 2018-9-15

I don't think so, but why would you want to do that?

Let me elaborate - the point of dependent is that there never is any data in the dependent property. It is calculated on demand each and every time it is accessed.

I just had a scary idea that might suffice as a workaround. If you can explain the use case, and don't get anywhere, I'll try to write up an example and post tomorrow.

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