They are two versions of election of the most creative authors.
In the first case the most creative author write the biggest number of original lines during contest.
In the second case the most creative author write the biggest number of original lines in the winner entrance.
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, let alone a help section, no example(s), loads a file, which the typical ML user does not have, all criterion's for which similar submissions have (deservedly) received a one-star rating in the past...