How to remove Nan layers from 3D array?

Question

Giacomo Caporusso 2023-7-10

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1994003-how-to-remove-nan-layers-from-3d-array

评论： Giacomo Caporusso 2023-7-13

采纳的回答： Deep

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.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Deep 2023-7-10

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1994003-how-to-remove-nan-layers-from-3d-array#answer_1270408

在 MATLAB Online 中打开

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) = [];