save matlab function to disk using scipy

Question

Using Python, I want to write a Matlab struct to disk. This is fairly simple using scipy.io module: http://docs.scipy.org/doc/scipy-0.9.0/reference/tutorial/io.html

However, I want one of the fields of the struct to be a function of the form @sqrt so that when I load the .mat file to disk in matlab, I get this functionality:

>> myStruct = load('MyStruct.mat')
>> myStruct.myFunction(5)
ans =
    2.2361

But I can't find how to do this. Simply putting in the string of '@sqrt' into one of the struct fields doesn't work.

thanks!

Eitan T · Accepted Answer · 2013-03-12 23:14:18Z

1

I've never worked with SciPy, but I can think of a possible workaround. Store the function name string instead of its handle, and in MATLAB use str2func:

myfunc = str2func(myStruct.myFunction);
myfunc(5)

If you really need a one-liner, you can use feval instead:

feval(myStruct.myFunction, 5)

answered Mar 12, 2013 at 23:14

Eitan T

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