How to interpolate values
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Hello. I have the question about how would you interpolate some values. For example, I have:
x y z
1 4 7
3 6 9
I want a point between (1,4) and (3,6) with the mean value of z.
Thank you in advanced!!
4 Comments
Matt Kindig
on 7 Mar 2013
Do you just mean that you want the mean of the x, y, and z coordinates? If so, your middle point would simply be
mid = mean([x, y, z], 1);
Or are you asking something else?
Accepted Answer
Sean de Wolski
on 7 Mar 2013
There aren't enough points to perform a 2d scattered interpolation which requires a Delaunay Triangulation under the hood. Instead, just use interp1 twice:
interp1([1 4],[7 9],2.5)
or acquire more data (recommended).
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