Mean of Matrix Rows

4 次查看（过去 30 天）
Vince Smith
Vince Smith 2019-5-18
评论： Star Strider 2021-8-22
For any matrix A, how would I subtract the row means from each row, so that each row has a mean of zero?

请先登录，再回答此问题。

采纳的回答

Star Strider
Star Strider 2019-5-18
The row means would be calculated as the mean of dimension 2.
Try this:
A = rand(5);
Anew = A - mean(A,2);
Check = mean(Anew,2) % Confirm: Mean = 0
  2 个评论
Yugal Kishore
Yugal Kishore 2021-8-22
sorry for activating this old thread but proved quite useful.
If I need to do a column means for the same problem statement, how would I do that. One way is to do a transpose of the matrix. I couldn't find anything in the documentataion.
Star Strider
Star Strider 2021-8-22
No worries!
To do column means, use mean without any extra arguments (it defaults to taking the column means), or specifying 1 as the dimension (instead of 2).
.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Creating and Concatenating Matrices 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