Jan Simon

I recommend not to overwrite the automatically accessed "ans" variable. This can be confusing e.g. during debugging. I'd use something like "dummy" instead.

The function is useful to support Matlab versions <= 2009a. The help text does niot have a H1-line, but is clear and contains the required warning. Perhaps a dialog might be added to ask for a confirmation. I cannot test the robustness of the REGEXP currently, such that I do not dare to rate this submission yet.

Btw. the need to include a subfunction to obtain a recursive list of files in subfolders is shows, that TMW should urgently include this as a toolbox function. This is a standard task which should not be left to the users.

This is an excellent implementation of a very efficient method. Together with the exhaustive documentation this submission is useful, usable and valuable for the productive work and education. Thanks, Jos!

A tiny simplification: You do not need B(:)', because B is a row vector already.

Using the brute clearing header "clc; clear all;" inside the functions is a bad idea. On one hand a function does not contain local variables initially, such that clearing them does not have any benefit. On the other hand this removes all breakpoints also, and everything, which prevents debugging, is a really bad programming practize.

I prefer the standard indentation scheme applied by Matlab automatically. But this is a question of taste only.

The small number of comments reduces the educational value of this submission.

Transporting a set of variables as cell has the important drawback, that the order of the values matter:
x=temp{1,1};
y=temp{1,2};
a=temp{1,3};
If you use a struct with the fields "x", "y", and "a" instead, the meaning is immediatly clear.

Great Job! thanks.