Indices of a maximum value in a multidimensional matrix.

41 次查看（过去 30 天）
Aftab Ahmed Khan
Aftab Ahmed Khan 2016-7-25
评论： Aftab Ahmed Khan 2016-7-25
Hi, I have a multidimensional matrix of size (100,16,4,10) and i want to calculate all the 4 indices of the max value in it? Any help please.

请先登录，再回答此问题。

采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2016-7-25
编辑：Azzi Abdelmalek 2016-7-25
a=rand(100,16,4,10); %Example
[max_value,idx]=max(a(:))
[x,y,z,w]=ind2sub(size(a),idx)
If the dimension of a is unknown
a=rand(100,16,4,10);
[max_value,idx]=max(a(:))
x=cell(ndims(a),1)
[x{:}]=ind2sub(size(a),idx)
  3 个评论
显示 1更早的评论
Thorsten
Thorsten 2016-7-25
use
b = squeeze(a(25,:,:,:));
and compute x, y, z from b; w is 25 by definition.

请先登录，再进行评论。

更多回答（1 个）

Adam
Adam 2016-7-25
编辑：Adam 2016-7-25
[maxVal, idx] = max( myMatrix(:) );
[x, y, z, w] = ind2sub( size( myMatrix ), idx );

类别

在 Help Center 和 File Exchange 中查找有关 Just for fun 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by