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Where is the function ismat?

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Raymond Graham
Raymond Graham 2021-4-6
回答： Walter Roberson 2021-4-6
Hello-
I just downloaded 2021a with all 92 toolboxes and am still getting the following error:
Unrecognized function or variable 'ismat'.
Error in buildgrid (line 59)
if ismat(X), X=mat2vec(X); end
Error in bin1d (line 42)
[X,XG]=buildgrid(X,x); % buildgrid also filters for matrix input
Can someone post the m file or tell me where to find the internal function ismat?
Thanks!

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Walter Roberson
Walter Roberson 2021-4-6

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