Get exact indices of max value in 3D matrix

Question

Hampus Alfredsson 2018-3-14

评论： Hampus Alfredsson 2018-3-14

I have a 3D matrix like the one below:

A(:,:,1) = [30 31 32 33 34];

A(:,:,2) = [29 35 27 23 20];

I want to get the indices for the maximum value (which is 35). So i write:

[r,c,p] = find(A==max(max(A))), and get the following result:

r = 1, c = 7, p = 1

I want the answer to be:

r = 1, c = 2, p = 2...

How can I do this?

Stephen23 2018-3-14

find does not return the page dimension, as you tried: the third output argument is actually the non-zero values themselves.

Answer 1

Stephen23 2018-3-14

编辑：Stephen23 2018-3-14

>> A(:,:,1) = [30 31 32 33 34];
>> A(:,:,2) = [29 35 27 23 20];
>> [mxv,idx] = max(A(:));
>> [r,c,p] = ind2sub(size(A),idx)
r =  1
c =  2
p =  2

Note that using the linear index idx to access the data may be more efficient.

Ok! Thank you @Stephen Cobeldick