How to remove Nan layers from 3D array?

I have an array of 3 dimensions (rows, columns end layers).

I want to do two things:

1) get the list of layers containing only nan;

3) get the array where the layers containing only nan have been removed.

Answer 1

[colordepth]

Here's a short demo on this:

% A is your 3D array
A = rand(4,4,4);
A(:,:,2) = nan; % making second layer nan for demonstration

% Check if a layer contains only NaN
layersWithNaN = all(all(isnan(A), 1), 2);

% 1. Get the list of layers containing only NaN
listOfLayersWithNaN = find(layersWithNaN);

% 2. Get the array where the layers containing only NaN have been removed
A(:,:,listOfLayersWithNaN) = [];

[Giacomo Caporusso]

Thank you so much.

The instructions work perfectly.