Curve Fitting for Forced Damping
3 visualizzazioni (ultimi 30 giorni)
Mostra commenti meno recenti
Hello,
I used the curve fitting app to fit this equation to some data:
F./(m*sqrt((w0^2-w.^2).^2 + (g^2)*w.^2))
The constants for the equation are F, m, g and w0. w is the independent variable.
My starting points for the data were F = 0.8491, g = 0.9340, m = 0.6787, and w0 = 125.
The method chosen is "NonlinearLeastSquares" and the algorithm chosen is "Levenberg-Marquardt".
However, the fit doesn't fit all that well. Here's a picture.
![dampedeqcurvefitnotgood.jpg](https://www.mathworks.com/matlabcentral/answers/uploaded_files/210066/image.jpeg)
Any tips on how to improve this fit? The R squared value for this fit is around 0.73.
My start points for this fit we
Thanks!
0 Commenti
Risposte (1)
Vedere anche
Categorie
Scopri di più su Get Started with Curve Fitting Toolbox in Help Center e File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!