First Button Callback takes really long

2018 12 16
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更新时间：2021 8 20
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I have designed a GUI as a Matlab Skript and after Running the Skript the first button callback i use takes a really long time to execute (A few minutes even!). After that any button callback starts instantly. I searched for this problem but couldnt really find any solutions.
Does anyone know, why this happens?

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Mark Sherstan
Mark Sherstan 2018-12-17
Also run your code through the profiler and post the results to your question and we will see if we can pinpoint whats taking so long to execute (please only post results that are taking a significant amount of time, something using ~2% of computation is not worth optimizing).
Jan Majewski
Jan Majewski 2018-12-17
Since it only happenend when first using the button callback i thought it had nothing to with my code (silly me).
I repeatedly checked variables using the matfile command which is really slow.
The solution was to assign the .mat file to a struct and use this struct as input argument for the function checking the variables.
Thanks for your help and sorry for the badly written question.

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