For the DataViz contest.
To answer the question of using data not normally on the MATLAB path, I offer the following modification.
warning ('This was an entry to the MATLAB programming contest (http://www.mathworks.com/contest/datavis/home.html). Please load the contest data and unzip it to place contest_data.mat on your MATLAB path.')
no H1 line, no help section, no example(s), loads a file, which the typical ML user does not have and, therefore, causes an error right away...
no appreciable benefit to any ML user...
Oops.. I forgot to change the text explaining the animation. Obviously it's NOT a scatter plot with colors showing time. They are just normal plots over time.