I have a table of three columns and I want to find a particular value in third column using interpolation, how can I do that if I know the values at first two columns?

6 次查看（过去 30 天）
ekagra gupta
ekagra gupta 2022-6-8
回答： dpb 2022-6-8
The three columns are there and I have a particular set of values (x,y) and I want to find a particular value at third column corresponding to (x,y) by interpolation. I tried interp2 but it shows "Interpolation requires at least two sample points for each grid dimension.".
Any sort of insight would be great on this one

请先登录，再回答此问题。

采纳的回答

dpb
dpb 2022-6-8
>> SI=scatteredInterpolant(X.',Y.',Z.')
SI =
scatteredInterpolant with properties:
Points: [4×2 double]
Values: [4×1 double]
Method: 'linear'
ExtrapolationMethod: 'linear'
>> SI(3.5,4.5)
ans =
7.0000
>>
To use interp2 you would have to have all 16 Z values; SI will do its best with what it has to work with...

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

Community Treasure Hunt

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

Start Hunting!

Translated by