I m not getting the exact bifurcation plot for matlab code. my bifurcation plot for the particular system is not showing the divergence to nonlinearity from linear region. what should be the error in my codes?

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Rizwana Junaid
Rizwana Junaid on 24 Oct 2011
% mlcmainfile
clf
clc
global f
for f=0:0.01:50
initialx(1)=0.8;initialx(2)=0.04;
[t,x]=ode45('mlceq',[0 450],[initialx(1),initialx(2)]);
plot(f,x(440:450,1),'r');
hold on
end
xlabel('f');ylabel('x')
axis ([0 50 -1.2 1.2])
--------------------------------------------------------------------------------------------------------------------------------------
% filename:mlceq(t,x)
function s=mlceq(t,x)
w=0.7;
global f
xdot=1.65* mlcg(x(1))-0.55*x(1)+x(2);
ydot=-x(2)-x(1)+f*sin(w*t);
s=[xdot;ydot];
% % xdot =1.65*G(x)-0.55*x+y;
% % ydot =-y-x+fsin(w*t);
-------------------------------------------------------------------
% Filename: mlcg(x)
function s = mlcg(x)
c=0.52;
if (x(1))>c
s=c;
else
if (x(1))<-c
s=-c;
else
s=x(1);
end
end
end

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