How to create mean matrix in multi-dimensional array

2014 3 26
1 个回答
回答已采纳
更新时间：2014 3 26
2 次查看（30 天）

0 个投票

Hello,
I have multi-dimensional array that is 8x8x40. This is basically a 8x8 correlation matrix that is concatenated across 40 people. I would like to get the mean 8x8 correlation matrix for the first 20 and then the mean correlation matrix for the last 20. If I do mean(A,3) it gives me the mean for all 40 people but I would like the individual means for two groups. Would I have to divide the array into two (one for each group)? If so how would I do this?
Thanks.

请先登录，再回答此问题。

 采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2014-3-26

0 个投票

a=rand(8,8,40) %example
a1=a(:,:,1:20);
a2=a(:,:,21:end)
m1=mean(a1,3)
m2=mean(a2,3)

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Image Arithmetic 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