How to use interp1 to stretch out smaller vector to the size of larger vector?

34 views (last 30 days)
So I have two vectors, lets call them A and B. A is the smaller vector, and has 1260 columns. B is the larger vector and has 1778 columns. I want to take an average of both these vectors. This is being hard because they are different sizes. Is there a way for me to use interp1 so that I can stretch out the smaller vector to match the size of the larger vector? Any help would be really appreciated!

Accepted Answer

John D'Errico
John D'Errico on 30 Sep 2019
Edited: John D'Errico on 30 Sep 2019
Assuming that you intend to create a vector of averages, do this:
Ahat = interp1(1:1260,A,linspace(1,1260,1778));
C = (Ahat + B)/2;
  2 Comments
SURESH KUMAR
SURESH KUMAR on 19 Jan 2024
it helped me alot . I wanted to strech the time series data without changing the y axis values and it does perfectly however i had to come up with understading about the duration for which i wanted my expension.. Anyways Thanks
Here is my if anyone needs
powNew=interp1(1:legnth(A),A,linspace(1,legnth(A),legnth(A)+increasementYourValue))

Sign in to comment.

More Answers (0)

Categories

Find more on Statistics and Machine Learning Toolbox in Help Center and File Exchange

Community Treasure Hunt

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

Start Hunting!