Find the index of a value closest to a constant value in 3D array when the index of row and column are given

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Telema Harry
Telema Harry on 9 Oct 2021
Answered: Chunru on 9 Oct 2021
I have a 3D array B(i,j,k). and I want to locate the index (k) in the array closest to the a number Val = 6.
i = 1, j = 4. and the matrix is given as B(1,4,:)
The array is given by:
B(:,:,1) =
1 2 4 2
7 8 9 0
B(:,:,2) =
9 2 4 7
0 1 2 3
B(:,:,3) =
7 8 9 0
1 7 6 8
The value closest to 6 is 7 and the index is 2.
Please, how can I write the code to compute this task.

Accepted Answer

Chunru
Chunru on 9 Oct 2021
B(:,:,1) =[ 1 2 4 2
7 8 9 0];
B(:,:,2) =[ 9 2 4 7
0 1 2 3];
B(:,:,3) =[ 7 8 9 0
1 7 6 8];
i = 1; j = 4;
[~, k] = min(abs(B(i,j,:)-6))
k = 2

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