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Thread Subject:
Plotting bifurcation diagram

Subject: Plotting bifurcation diagram

From: Sanaa

Date: 30 Jan, 2013 14:10:11

Message: 1 of 1


I am plotting the bifurcation diagram for the map
x_(n+1)= x_n + (t-n*r)+ rho* x_n*(1-x_(n-1)), n=0,1,2,...,
t is the time should be between n*r and (n+1)*r.
What's wrong in the code! I should have got a diagram not a point!!!

% define the vector of colors, to plot the dat aof reach value of r in
% different color
color_vec = ['b'];
for rho = 0: 0.001:4
% define the number of deiscrete times in interval [k*r, (k+1)*r]
n = 10;
% define the nimber of iterations k = 1,.....,Nit
Nit = 50;
% define the initial vector which is a vector of size n
x0 = 0.3*ones(1,n);
% define vectors x_next and x_previous
x_next = zeros(1,n);
x_previous = zeros(1,n); %x_n
x_pp=zeros(1,n); %x_n-1
time = zeros(1,n);

% initialize x_previous
%x_previous = x0;
x_pp=0.2*ones(1,n); %x_n-1
    hold on
for i = 1:Nit
    time = linspace(i*r,(i+1)*r,Nit);
    x_next = x_previous+(time(i)-i.*r)*rho*x_pp.*(1-x_pp);
    %x_previous = x_next;
   I need your help if you please.
Thanks a lot in advance.

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