exist() for functions only?

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Daniel 2014-12-19

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评论： Sean de Wolski 2014-12-22

采纳的回答： matt dash

As I understand, the exist() function in MATLAB will return "2" if the input is a MATLAB function.

The list of options for the second input 'kind' are builtin, class, dir, file, and var.

I want to input 'kind' so that exist() will ONLY search for functions, and return 2 if it is a match to a function and a 0 if not.

Is there any way to do this?

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Sean de Wolski 2014-12-22

So you mean ONLY functions or any MATLAB files that will run (scripts/functions/classes)? which will return something for scripts and classes as well.

Sean de Wolski 2014-12-22

For functions only, this blog post and ensuing comments explains:

http://blogs.mathworks.com/loren/2013/08/26/what-kind-of-matlab-file-is-this/

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matt dash 2014-12-19

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在 MATLAB Online 中打开

An option that is not exactly what you describe, but might work for you:

isempty(which([functionname,'.m']))

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Daniel 2014-12-22

Will this work in a deployed application? since the file isn't actually on the filepath any longer as its packaged in an EXE?

Sean de Wolski 2014-12-22

What about p-files?

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Azzi Abdelmalek 2014-12-19

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编辑：Azzi Abdelmalek 2014-12-19

在 MATLAB Online 中打开

exist()==2

%or

A = exist('name','file')

My problem here is what if it exists as a workspace variable or another non-m file on the search path? in that case it will return 1 or 5 respectively, while I would still not be sure if it exists as a funciton.

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