How to use the fillmissing function to interpolate at certain points

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Suppose I have some data at times t = 1:100, with some missing values.
I want to use fill missing function to interpolate only at certain data points e.g. at t = 10,20,30,40,50,60,70,80,90,100.
Sample points argument does not seem to be working.

Accepted Answer

Mohammad Sami
Mohammad Sami on 13 Mar 2020
You can directly use interp1 to interpolate at your desired time intervals.
t = 1:100;
v = zeros(1,100); % here v is the value u are interpolating
ti = 10:10:100;
vi = interp1(t,v,ti);
  2 Comments
Swapnil Sayan Saha
Swapnil Sayan Saha on 13 Mar 2020
What if I want to fill up in between, like for example: at [2 3 4], then at [15:25] and so on?
Mohammad Sami
Mohammad Sami on 13 Mar 2020
yes just create a ti vector comprising of the values you need.
ti = [2:4 15:25]; % etc

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