What would be the equation of the following surface?

1 次查看（过去 30 天）
Aravind Varma Dantuluri
评论： Aravind Varma Dantuluri 2024-3-12
I have the raw data of X, Y, Z, where X and Y are inputs and Z is the output. Plotting the surface gives the following surface (screenshot shown from different angles for clarity):
Any ideas what could be the rough equation of this surface? I don't know any function which has 2 "humps". The 2D equation need not be exact. I can find the coefficients of the equation using least squares curve fitting.

请先登录，再回答此问题。

采纳的回答

Image Analyst
Image Analyst 2024-3-12
One assumption might be that it's the sum of two Gaussians, like
z = a1 * exp(-( (x-xctr1).^2 + (y-yctr1).^2) / sigma1) + a2 * exp(-( (x-xctr2).^2 + (y-yctr2).^2) / sigma2)
or something like that.

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Mathematics and Optimization 的更多信息

标签

产品


版本

R2023b

Community Treasure Hunt

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

Start Hunting!

Translated by