Interpolation of matrices corresponding to time vector

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I have a vector containing time points, and a cell structure containing matrices as its elements.
I want to interpolate the corresponding matrix for some time point which is not in the time vector. How to do that?
Bjorn Gustavsson
Bjorn Gustavsson on 26 Jun 2019
Or, depending on sizes, it might be more efficient to interpolate all matrix components at the same time with interp3, or interpn. The different interpolation functions have slightly different options when it comes to interpolation methods.

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Accepted Answer

Andrei Bobrov
Andrei Bobrov on 26 Jun 2019
Variant with interp1:
t = [1, 2, 3];
A = {[1, 1; 1, 1] ,[1, 0.9;0.95, .87] , [1.1, 0.85;0.91, .8]};
tt = [1.2, 2.1, 2.9];
out = interp1(t(:),permute(cat(3,A{:}),[3,2,1]),tt);
out = permute(out,3:-1:1);
KALYAN ACHARJYA on 26 Jun 2019
The answered is already provided by @Andrei, Hello @Ashok, please accept the answer to give due credit to the answer provider.

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More Answers (1)

Vismay Raj
Vismay Raj on 26 Jun 2019

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