swap a matrix using two vectors

an =

    2
    3
    5
    6
    0
    1
    4

bn =

     4
     5
     1
     3
     2
     6
     0

I need to swap these two vectors in the matrix b =

     4     3     2     5
     1     0     6     2
     3     2     5     1

[Anusha]

all the 2 becomes 4 ,3 becomes 5,5 becomes 1.,etc

Answer 1

[the cyclist]

[~,idx] = ismember(b,an)
b_swapped = bn(idx)

[Anusha]

Subscript indices must either be real positive integers or logicals.

for b_swapped

[Anusha]

only direct swap only. 2 to 4 and 4 to 0 directly.. no swap 2 to 0

[the cyclist]

My algorithm does direct swap only. Run this code:

an = [2 3 5 6 0 1 4];

bn = [4 5 1 3 2 6 0];

b =  [4 3 2 5; ...
      1 0 6 2; ...
      3 2 5 1];

[~,idx] = ismember(b,an);
b_swapped = bn(idx)

I get

b_swapped =

     0     5     4     1
     6     2     3     4
     5     4     1     6

Isn't this exactly what you want?