How to reduce the rate MATLAB attempts to execute a function in the Value Changing callback
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Alexander Larking
on 1 Feb 2020
Edited: Walter Roberson
on 1 Feb 2020
Hello. I am writing an app in app designer and a part of it requires Matlab to graph a function. As I move a slider, I want the graph to change, so I used the 'Value changing' callback, but I realized that the calculation is taking too long for Matlab to keep up with. Is there a way for me to specify for Matlab to try to regraph only 10 times a second?
(I have tried to reduce lag time by creating a matrix that contains the values on startup, so all that the callback is doing is indexing the matrix, assigning values to X and Y, and then graphing)
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Walter Roberson
on 1 Feb 2020
Edited: Walter Roberson
on 1 Feb 2020
One technique is to keep track of the last time the function was invoked, and if it was less than 1/frequency ago then return (without recording the time)
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