Can I use different models to do a 2D fit?

1 次查看（过去 30 天）
Jaime De La Mota Sanchis
回答： Matt J 2021-10-1
Hello everyone. I am currently working in a two-dimensional interpolation.
I can write
sfX = fit([positions(:,1), positions(:,2)],windX_in_the_node_vector,'poly34')
witout any issue. However, if I check the documentation, I see that the only other surface fit that can be used is 'lowess'. Is this true or can I use splines or other alternative interpolation methodologies?
Best regards.
Jaime.

请先登录，再回答此问题。

采纳的回答

Matt J
Matt J 2021-10-1
Yes, but you don't need the Curve Fitting Toolbox just tod surface interpolation. With interp2 (if you have gridded data) you can use any of the ones listed here,
https://www.mathworks.com/help/matlab/ref/interp2.html#btyq8s0-1-method
If you have scattered samples, then with griddata, you can use any of the methods here,
https://www.mathworks.com/help/matlab/ref/griddata.html#bvkwume-method

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Interpolation 的更多信息

标签

产品


版本

R2021b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by