How can I organize the rows of an array in a specific order?

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Pedro Guevara
Pedro Guevara 2020-2-25
回答： Sai Sri Pathuri 2020-2-28
Good morning. I have the following problem. I have a square matrix of N * N (The matrix can be of different size), in the final row of said matrix there are some indices in a certain order, these indices are also in the final column of the matrix but in a different order. What I want is a code that allows me to organize the rows of the matrix in the same order as the final row of the matrix. The purpose of this is to obtain a symmetric matrix.
Example.
Before organizing:
After organizing:
Thank you very much for your help.

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Sai Sri Pathuri
Sai Sri Pathuri 2020-2-28
Let the square matrix of order NxN be A. In order to obtain symmetric matrix from A, you may try the following:
Sort the elements in the last row of matrix A and get the indices (Ir) of sorted elements
[Sr,Ir] = sort(A(N,:)
Similarly, sort the elements in the last column of matrix A and get indices Ic
[Sc,Ic] = sort(A(:,N)')
Now align the rows of matrix according to the last row of matrix A by
A(Ir,:)= A(Ic,:)

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