Interpolation of matrices corresponding to time vector

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Ashok Das
Ashok Das am 25 Jun. 2019
Kommentiert: KALYAN ACHARJYA am 26 Jun. 2019
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?
Presentation1.png
  4 Kommentare
infinity
infinity am 26 Jun. 2019
Hello,
You could try to look at this
maybe it will help.
Bjorn Gustavsson
Bjorn Gustavsson am 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.
HTH

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Akzeptierte Antwort

Andrei Bobrov
Andrei Bobrov am 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);
  2 Kommentare
Ashok Das
Ashok Das am 26 Jun. 2019
Thank you for yor reply. Can you please elaborate the code a bit. It will be reallly helpfull.
KALYAN ACHARJYA
KALYAN ACHARJYA am 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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Vismay Raj
Vismay Raj am 26 Jun. 2019

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