Number of input parameters of a function.

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Milad Omidi
Milad Omidi 2019-4-5
评论： John D'Errico 2019-4-5
If you have a function's handle,
Is there any way to figure out how many input parameters it expects in the function's signature?
Even ugly hacky ways are fine.
-Milad

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采纳的回答

Walter Roberson
Walter Roberson 2019-4-5
nargin(FunctionHandle)
  1 个评论
John D'Errico
John D'Errico 2019-4-5
A good way to learn this would have worked is to use methods. For example:
H = @(x,y) x+y
H =
function_handle with value:
@(x,y)x+y
>> methods(H)
Methods for class function_handle:
display func2str functions nargin nargout

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