Fitting 3d data
9 visualizzazioni (ultimi 30 giorni)
Mostra commenti meno recenti
I have a nonlinear 3D data. Can someone help in providing me a function that fits my data? I would like to use that function for interpolation/extrapolation. Appreciate your help.
0 Commenti
Risposte (1)
Torsten
il 1 Mar 2018
I suggest you interpolate directly from the data:
https://de.mathworks.com/help/matlab/ref/scatteredinterpolant.html
Best wishes
Torsten.
2 Commenti
Torsten
il 1 Mar 2018
Put your first column in vector x, your second column in vector y and your third column in vector z.
Then call
F = scatteredInterpolant(x,y,z);
For a query point (xq,yq)
zq = F(xq,yq)
gives you the interpolated z-value.
Best wishes
Torsten.
Vedere anche
Categorie
Scopri di più su Interpolation 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!