what is the meaning of this code?

cl = {'open','close'};

% Initialise empty cell structure

DBL = cell(1,1);

DBR = cell(1,1);

DBM = cell(1,1);

dim = [30 60;

30 60

40 65];

Answer 1

[Image Analyst]

It just instantiates four cell arrays and a double matrix. It doesn't really mean anything, at least not to me. Why should it?