Simulink and Variable Sized Global Variables

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I have a M-Function which reads some data at each time step, stores it in a growing dictionary (A = [A; a], where 'a' is the new data) and then uses it to produce an output.

I would like to use this function in Simulink, however I cannot see a way to create a variable sized global variable that A needs to be.

Could someone please point me in the correct direction?

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Answer 1

C.J. Harris 2012-1-9

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I don't believe you can do this, at least not in an easy way. You might be better off looking into the possiblity of initialising A to its maximum size, and then selecting the part of the vector you need to use at each timestep.