Plotting from a for loop- discrete maps

I'm just playing around with discrete maps (i.e. the logistic map). I seem to be having an issue plotting my data; It seems to only plot the last data point. Any suggestions?

function [x] = logistic(lambda,x0,n)
x(1) = x0;
for i= 1:n
    x(i+1) = lambda*x(i)*(1-x(i));
    z = [i,x(i)];
    disp(z);
end
plot(z,'+');
end

Thank you in advance

Answer 1

[Birdman]

function [x] = logistic(lambda,x0,n)
x(1) = x0;
for i= 1:n
    x(i+1) = lambda*x(i)*(1-x(i));
    z(i,:) = [i,x(i)];
    disp(z);
end
plot(z(:,1),z(:,2),'+');
end

[Maria Raheb]

Thank you!

Any idea how I can use my code to construct a bifurcation diagram of the quadratic/logistic map? The code I've attached does not do that for me.

for lambda = 0:0.01:4
[x] = logistic(lambda,0.5,25);    
end