%
% epage 325
% 
% 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.
% 
%-----

close all; drawnow; 
clc; 
clear; addpath( '../../Code/eda_data' ); addpath( '../../Code/eda_toolbox' ); addpath( '../Chapter1' ); 

randn('seed',0); 
tCovR = randn(2,2); 
tCov  = tCovR.' * tCovR;                    % generate a gaureented positive definite matrix  
X = mvnrnd( [ 1, 1], tCov, 100 );           % generate some data with the same mean

figure; boxplot( X, 'notch', 'on' ); 
title( 'normal data with equivalent means' );
saveas( gcf, '../../WriteUp/Graphics/Chapter9/prob_9_14_same_means', 'epsc' ); 

X = mvnrnd( [ 9, 10], tCov, 100 );           % generate some data with different means

figure; boxplot( X, 'notch', 'on' ); 
title( 'normal data with different means' );
saveas( gcf, '../../WriteUp/Graphics/Chapter9/prob_9_14_diff_means', 'epsc' );