Having trouble with linregr in matlab
1 visualización (últimos 30 días)
Mostrar comentarios más antiguos
So i have this code here with the lyapunov experiment and im trying to use linear regression of linearized data with linregr to find the numeric value of the lyapunov exponet with the time interval (7.0-17.0) and it says first i need to find the array indices according to those time values but i do not know how to find the array indices or how to implement linear regression correctly to find the exponet.
function yp = lorenz_attractor(t,y)
yp = [10 * (y(2)-y(1)); 28*y(1) - y(1)*y(3) - y(2); ...
y(1)*y(2) - (8/3)*y(3)];
tspan = [0 30]; y0 = [5 5 5]; y00 = [5.00001 5 5];
[t1, y1] = ode45(@lorenz_attractor,tspan,y0);
[t2, y2] = ode45(@lorenz_attractor,tspan,y00);
figure(1)
plot(t1,y1(:,3),t2,y2(:,3),'--')
title('y_3(t) for y(0)=[5 5 5] (solid) and y(0)=[5.00001 5 5] (dashed)')
y21 = interp1(t2,y2,t1);
figure(2)
v=log(abs(y21(:,3)- y1(:,3)));
plot(t1,v)
title('logarithm of separation of the two y_3(t) solutions')
0 comentarios
Respuestas (1)
Ver también
Categorías
Más información sobre Matrix Computations en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!