% CDBN file cdbn.m Continuous graph of distribution function
% Version of 1/29/97
% Plots continuous graph of dbn function FX from 
% distribution of simple rv (or simple approximation)
xc  = input('Enter row matrix of VALUES  ');
pc = input('Enter row matrix of PROBABILITIES  ');
m  = length(xc);
FX = cumsum(pc);
xt = [xc(1)-0.01 xc xc(m)+0.01];
FX = [0 FX FX(m)];    % Artificial extension of range and domain
plot(xt,FX)           % Plot of continuous graph
grid                  
xlabel('t')
ylabel('u = F(t)')
title('Distribution Function')