The function you are trying to use here is part of the Signal Processing Toolbox, which is not available on Cody. However, you might find another way of implementing your idea in core MATLAB without that specific function.
Poker Series 08: IsPair
Selecting books on MATLAB for experts and beginners (blindfolded)
Convert hex color specification to MATLAB RGB
Back to basics: throwing errors / exceptions
Comparison of floating-point numbers (singles)
Make your own Test Suite (part 0)
What score did they give?
Arrange the names in alphabetical order (2)
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