%
% Example epage: 28
% 
% Written by:
% -- 
% John L. Weatherwax                2008-02-20
% 
% email: wax@alum.mit.edu
% 
% Please send comments and especially bug reports to the
% above email address.
% 
%-----

clear all; 
close all; drawnow;
clc; 

addpath('../../Code/eda_toolbox');
addpath('../../Code/eda_data');

load software
% First transform the data.
X = log(prepsloc);
Y = log(defsloc);
% Plot the transformed data.
plot(X,Y,'.'); grid on; 
xlabel('Log PrepTime/SLOC')
ylabel('Log Defects/SLOC')
title( sprintf('the original software data') ); 
saveas( gcf, '../../WriteUp/Graphics/Chapter1/prob_1_11_orig_data', 'eps' ); 


% try the other transformations: 
%
X = prepsloc; 
Y = log( 1 + sqrt(X) );  
figure; 
ph1=plot(X,Y,'.k'); grid on; hold on; 
Y = log( sqrt(X) );  
ph2=plot(X,Y,'.r'); 
legend( [ph1,ph2], {'log(1+sqrt(x))', 'log(sqrt(x))'}, 'location', 'southeast' ); 
xlabel('PrepsLoc')
ylabel('T(PrepsLoc)');
title( sprintf('the transformed software data') ); 
saveas( gcf, '../../WriteUp/Graphics/Chapter1/prob_1_11_transformed', 'eps' );