This is a simple example of how nested functions can simplify the writing of callback functions for writing continuously-running applications. Callback functions are used by timer objects and the various objects in the Test & Measurement Toolboxes (Data Acquisition Toolbox, Instrument Control Toolbox, Image Acquisition Toolbox) to associate MATLAB code with events such as timers.
This example contains the code included in the October, 2005 MATLAB News & Notes tip on this topic.
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A bit more explanation of the way (repetitions?) to call the routine would be nice.
Made available for download as an easy-to-install Toolbox file.