logger_demo.m

% Example usage of the logger class.

% ==========================================================================
% Author: 	 Pavan Mallapragada 
% Organization:  Massachusetts Institute of Technology
% Contact:       <[e-mail]>
% Created:       Oct 01, 2011 
% ==========================================================================


l = logger;

tic;
sumval = 0;
for i = 1:100,
	pause(0.001);
	my_output_1 = 10*rand;
	height = 1.5*my_output_1 + 5*rand;


	% Log my_output_1 variable as 'weight'
	l.logVal('weight', my_output_1);

	% Log height variable as 'weight'; no need to specify the string
	% if same variable is used in the log
	l.logIt(height);

	sumval = sumval + my_output_1 + height;

	s.r1 = my_output_1;
	s.r2 = height;
	s.r3 = 'Some Results';

	if my_output_1 > 6
		l.logWarn(['Height exceeded 6 at ' num2str(i)], true);
	end


	% Store every 10th
	if mod(i,10) == 0,
		l.logMesg([ num2str(i) ' entries logged with sum = ' num2str(sumval)], 1);
		l.logVal('time',toc);
		l.logVal('sum',sumval);
		l.logObj('result',s);
	end

end


% Set descriptions of variables for plots
l.setDesc('weight','Weight of Subjects');
l.setDesc('height','Height of Subjects');
l.setDefaultDesc('Subject ID');

% Plot several variables from the logger object.
figure; l.plot2Vars('weight','height','LineWidth', 2, 'Color','r'); 
figure; l.plotVar('weight','LineWidth', 2, 'Color','r'); 
figure; l.plotVar('height','LineWidth', 2, 'Color','r'); 
figure; l.plotFofVar('weight',@sin, 'LineWidth', 2, 'Color','r'); 
figure; l.plotFofVar('height',@log, 'LineWidth', 2, 'Color','r'); 
figure; l.plotFofVar('time',@cumsum, 'LineWidth', 2, 'Color','r');