Least Squares Method for best line fitting
2 visualizzazioni (ultimi 30 giorni)
Mostra commenti meno recenti
Tharindu Weerakoon
il 26 Feb 2015
Commentato: Tharindu Weerakoon
il 27 Feb 2015
I have a set of X and Y coordinates data taken from Laser scanning
X=[x1 x2 x3 x4 .....] Y=[y1 y2 y3 y4 .....]
Elements of both the X and Y include some errors.
I tried to find the best fitting line using polyfit and polyval command in matlab, but it can use only to calculate the Yhat w.r.t. X data.
At the end it will give X and Yhat only.
If I want to know calculate both the Xhat and Yhat, how can I use polyfit and polyval ?
0 Commenti
Risposta accettata
Torsten
il 26 Feb 2015
I think you are talking about "orthogonal linear regression".
Try
Polyfit is not suited for this kind of Fitting ; it assumes there are no errors in the independent variable.
Best wishes
Torsten.
Più risposte (0)
Vedere anche
Categorie
Scopri di più su Linear and Nonlinear Regression 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!