how to find the indices after sorting columns of a matrix

Suppose i have 4x4 matrix A with different integers. I sort each column of the matrix i.e. B= sort (A,'ascend'). Now i want matrix C which should show changed indices of matrix A after sorting.

Answer 1

[SALAH ALRABEEI]

If I got you correctly, I think you want you want this

clear
A = magic(4)

A = 4×4

16 2 3 13 5 11 10 8 9 7 6 12 4 14 15 1

[n,m]=size(A)

n = 4

m = 4

[As,Cur_ind]=sort(A,'ascend')

As = 4×4

4 2 3 1 5 7 6 8 9 11 10 12 16 14 15 13

Cur_ind = 4×4

4 1 1 4 2 3 3 2 3 2 2 3 1 4 4 1

Org_ind = reshape(1:n*m,n,m)

Org_ind = 4×4

1 5 9 13 2 6 10 14 3 7 11 15 4 8 12 16

bb=[1:n].*ones(n,m)

bb = 4×4

1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4

C = reshape(diag(Org_ind(Cur_ind,bb)),n,m)

C = 4×4

4 5 9 16 2 7 11 14 3 6 10 15 1 8 12 13