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Temporary (or anonymous) function handles for ML 6

version 1.0.0.0 (2.18 KB) by Nathan Thern
Creates a temporary function m-file and returns a handle to it.

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Updated 28 Jan 2005

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The anonymous function handle feature of ML 7 is a long-needed feature, and one that I have longed for since I began writing scripts in early ML 6.

Unfortunately, I am still forced to use ML 6 most of the time, so I came up with a way to create "psuedo-anonymous" function handles: that is, function handles to real m-file functions that are created on the spot and will be deleted in the near future.

TMP_HANDLE writes out a temporary function m-file in its private subdirectory and then returns a handle to it. As a side effect, it searches for old temporary function files and deletes them.

I have TMP_HANDLE set to delete temporary function m-files that are older than 30 days. The whole idea of cluttering up a subdirectory with little m-files is distasteful, but not really a big deal given modern disk sizes. I have chosen to live with it.

Next step:
Make TMP_HANDLE a class with overloaded feval and subsref so you can call
feval(t_hndl,x,y)
OR just
t_hndl(x,y)

Matlab 5 has feval and classes with overloading, so making tmp_handle a class should allow it to work with ML 5.

Cite As

Nathan Thern (2021). Temporary (or anonymous) function handles for ML 6 (https://www.mathworks.com/matlabcentral/fileexchange/6755-temporary-or-anonymous-function-handles-for-ml-6), MATLAB Central File Exchange. Retrieved .

Comments and Ratings (1)

Yuri Gribov

Nice work (unfortunately not working in Matlab 7, solution 1-ZW3RB). I think that TMP_HANDLE may be useful even in Matlab 7 because @'s are still significantly slower than normal M-files.

MATLAB Release Compatibility
Created with R12
Compatible with any release
Platform Compatibility
Windows macOS Linux

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