dividing a diagonal matrix into same and different diagonal elements

5 次查看(过去 30 天)
I have a diagonal matrix as:
V = [ 0.0001 0 0 0 0;
0 0.0001 0 0 0;
0 0 3.6388 0 0;
0 0 0 5.3610 0;
0 0 0 0 6.0004];
I want to find the number of diagonal elements which are same in values. 2ndly I want to separate them in a variable, how will I do it? Here V is a 5x5 matrix, but it may be any square size matrix in general.

回答(1 个)

Dyuman Joshi
Dyuman Joshi 2021-5-16
编辑:Dyuman Joshi 2021-5-16
%This will give the diagonal elements in a separate variable.
z = diag(V);
%Finding the number of repeated values
y = unique(z);
n = histc(z,y);
x = n(n>1); %If there are more than 1 repeating values, answer will be an array
a = y(n>1); %Get the variables that are repeated
  3 个评论
Dyuman Joshi
Dyuman Joshi 2021-5-17
编辑:Dyuman Joshi 2021-5-17
I tested the function as stand-alone by giving it V1 as input and it works fine. This probably what you also said. Not sure why it doesn't run in your code. I am evaluating your code and will update here.
Dyuman Joshi
Dyuman Joshi 2021-5-17
Is it necessary to use functions? Your code is not the optimised way to write functions.

请先登录,再进行评论。

类别

Help CenterFile Exchange 中查找有关 Operating on Diagonal Matrices 的更多信息

Community Treasure Hunt

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

Start Hunting!

Translated by