How to calculate the standard deviations of each row of an array and get those as a 1-D array?

79 次查看（过去 30 天）
Md. Golam Mostafa
Md. Golam Mostafa 2015-6-24
回答： jaypal singh 2019-1-27
How to calculate the standard deviations of each row of an array and get those as a 1-D array?

请先登录，再回答此问题。

采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2015-6-24
编辑：Azzi Abdelmalek 2015-6-24
M=rand(4,3)
% std for each row
s1=std(M,[],2)
% std for each column
s2=std(M)
  3 个评论
显示 1更早的评论
Stephen23
Stephen23 2015-6-24
编辑：Stephen23 2015-6-24
Any internet search engine will locate these functions for you:
http://www.mathworks.com/help/matlab/ref/mean.html
http://www.mathworks.com/help/matlab/ref/median.html
Learn to use the documentation, it is not just there to make the internet more colorful. The documentation explains how functions work, and it has examples too!

请先登录，再进行评论。

更多回答（2 个）

Jan
Jan 2015-6-24
Such questions are solved exhaustively in the documentation of Matlab: see doc std.
If you do not know the required command, you can look in the "See also" line of similar commands or use docsearch to search for terms inside the documentation. Even asking your favorite internet search engine is a good idea. All of these ideas are faster and more efficient than asking the forum, so it is recommended to try them at first.
jaypal singh
jaypal singh 2019-1-27
dear sir,
I have 90000x13 (table).mat file .
here is 1-80000 is 0 label
and 800001-90000 is 1 label
i have to find avg and std for 0 label seperate and for 1 label seperate

类别

在 Help Center 和 File Exchange 中查找有关 Matrices and Arrays 的更多信息

标签

产品

Community Treasure Hunt

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

Start Hunting!

Translated by