function output_data = unit_scale_data_catch(data)
%
% function output_data = unit_scale_data_catch(data)
%
% Scale an input data array so that the entire data range fits into the
% unit interval [0, 1]. Specifically, subtract the mean value from the
% array, and then divide by the data range (max - min).
%
% This is intended to be an example of the MATLAB debugger. This version
% wraps the line in question with a try/catch, which allows the program to
% proceed from a dbstop.
%

% compute min and max.
data_max = max(data);
data_min = min(data);

% copy the input data
output_data = data;

try
    % Rescale the data by first subtracting the minimum (the data is shifted to
    % [0, max-min]), and then dividing by the range (data is scaled to [0,1])
    output_data = output_data - data_min;
    output_data = output_data / (data_max - data_min);
catch
    disp('Error during data rescaling')
end