Matlab code for Sorting diagonal elements of matrix and index of sorted elements is filled into new matrix as shown below?

This first matrix table1 contains normalized values for 5 names.I need to perform some operations on this matrix and I have to obtain second matrix as shown in table2.

Diagonal elements of table2 should obtained by giving rank(ordinal value) to each value.That means highest element is given 5th rank and next highest is given 4th 3rd and so on.

   OPERATION:For diagonal elements

       B(1,1)=5(first largest element)
       B(2,2)=1(5th largest element)
       B(3,3)=4(4th largest element)
       B(4,4)=2(2nd largest element)
       B(5,5)=3(3rd largest element)

Table1:
             BASAVARAJ MANOJ  NATESH  VIJAY  GOWDA
          
BASAVARAJ  1.0000  0.2727  0.3182  0.0455  0.2727
MANOJ          0.2727  0.2727    0    0    0
NATESH          0.3182    0  0.4545  0.1818    0
VIJAY          0.0455    0  0.1818  0.2727  0.0909
GOWDA          0.2727    0    0  0.0909  0.3636
     Table2:
                      BASAVARAJ    MANOJ   NATESH  VIJAY  GOWDA
       BASAVARAJ      5         0  0  0  0
       MANOJ              0         1  0  0  0
       NATESH              0         0  4  0  0
       VIJAY              0         0  0  2  0
       GOWDA              0         0  0  0  3