%Class for CO907, Tue, Week 1.
%__________________________________________
%Author: Jiarui Cao
%Date: 5 Nov 2013
%Purpose: Plot CDF and use it to study the tail

close all;
clear all;
clc;
clf;


% x=-5:0.1:5;
% f=normcdf(x,0,1);
% Generate Gaussian CDF at values x
% plot(x,f)

hold on
y=normrnd(0,1,1000,1); 
%y=binornd(10,0.8,[1000 1]);
[g,t]=ecdf(y); % Get the empritical CDF function g(t) from data y
plot(t,1-g,'om');

p=normcdf(t,0,1); 
%p=binocdf(t,10,0.8);
plot(t,1-p);
 
%set(gca,'Yscale','log'); % Log the y-axis

hold off

legend('Empritical','Theoritical');