I need help on finding the max & min values of a 3d array.
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Petronella
le 8 Fév 2022
Modifié(e) : John D'Errico
le 8 Fév 2022
I need help on finding the max & min values of a 3d array.
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Turlough Hughes
le 8 Fév 2022
M = max(A,[],'all')
finds the maximum over all elements of A. This syntax is valid for MATLAB® versions R2018b and later.
From the documentation for min
M = min(A,[],'all')
finds the minimum over all elements of A. This syntax is valid for MATLAB® versions R2018b and later.
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John D'Errico
le 8 Fév 2022
Modifié(e) : John D'Errico
le 8 Fév 2022
min and max are not sufficient? For example:
A = randi(1000,[4 3 2])
[maxval,maxind] = max(A,[],'all')
So 954 is the largest value. It occurs where? At the 20th element of A. That is, if the elements of A were strung out in a single vector as they are stored in memory. What subscripts does that correspond to?
[irow,icol,ipage] = ind2sub(size(A),maxind)
4th row. 2nd column, 2nd page.
Min works the same way. Ok, it finds the min, not the max, so not exactly the same way. :)
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