3D matrix, max in z direction
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Hello all ,
I am working with data arranged in a large 3D matrix and am wondering how I might find the maximum value in the Z direction of all elements at a specific x,y coordinate.
For example, if:
A = [1 2 3; 4 7 8]
B = [6 4 2; 3 5 7]
C = [3 3 9; 2 3 2]
and i arrange the matrix as such:
data_3d = cat(3, A, B, C)
I would like to find the maximum value of all 'z' elements positioned at the x,y coordinates(1,1) compared to each other, where: max_1 = 6
Is there a simple function to do this, or is it necessary to call each individual element in the following manner:
max_1 = max([A(1,1) B(1,1) C(1,1)])
(will this ^ even work?)
A bit of a matlab newbie, and any help is greatly appreciated. :) Thank you for your time
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Accepted Answer
Star Strider
on 7 Aug 2016
Try this:
max_data_3d = max(data_3d, [], 3)
max_data_3d =
6 4 9
4 7 8
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