Dynamic lookup with variable length vectors

Andy

2020 5 7

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LookupDynamicVarStepIssue.slx

I have been using the attached function successfully in real time models. As attached it runs nicely with a fixed time step integrator. Now have a need for the same functionality in a variable time step model. Is it possible at all?

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Andy 2020-5-22

在 MATLAB Online 中打开

To me this is still an open issue, but for my immediate need I have a pretty robust alternative. Instead of using variable array height, I can stretch or shrink all arrays to a common height with code such as:

newXvec = linspace(inputBlock(1,1), inputBlock(end,1), inputLengthSpec)';
tempArg1 = interp1(inputBlock(:,1), inputBlock(:,2:end), newXvec, 'makima');
outputArg1 = [newXvec tempArg1];

Combined with pre- and post- processing to force monotinicity, it is works nicely with variable time step solvers.

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