How to integrate the discrete data?

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Hi,
I am having a 3 2d matrices
1st matrix is of size NxM corresponds to the X-cordinates
2nd matrix is of size NxM corresponds to the Y-cordinates
3rd matrix is of size NxM corresponds to the Power at the above designated cordinates
How to find the Total power and total power above half maximum?
  2 Comments
Vinay Killamsetty
Vinay Killamsetty on 24 Oct 2021
Yeah, thats true.
Thank you for your advice.

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Accepted Answer

Prachi Kulkarni
Prachi Kulkarni on 21 Oct 2021
Hi,
Integration is equivalent to summation in the discrete domain. So, if P is your NxM power matrix, you can compute the total power and total power above half maximum as follows, assuming the power is in watts.
totalPower = sum(P,'all');
maxPower = max(P(:));
totalPowerHalfMaximum = sum(P(P>0.5*maxPower));

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