How to find rows with maximum number

I have a matrix with n rows and 1 column. I would like to find rows which has the maximum number of rows. Then, replace zero in the other rows.

For instance: I have matrix A and I would like to produce matrix B.

 A=
 5
 2
 2
 4
 3
 2

 B=
 0
 2
 2
 0
 0
 2

Answer 1

[Star Strider]

This works:

A = [5
    2
    2
    4
    3
    2];
[Au,ia,ic] = unique(A, 'stable');
h = accumarray(ic, 1);
B = A;
B(ic~=Au(h==max(h))) = 0

B =

       0
       2
       2
       0
       0
       2

[Maryam Hamrahi]

Thanks a lot for the help Star Strider.

It is really appreciated.

[Star Strider]

As always, my pleasure.

[Maryam Hamrahi]

Many thanks for your help Star Strider.

Why your code gives me error for the following matrix:

 A =
    5
    0
    0
    4
    3
    0

your code gives me this:

 B =
     0
     0
     0
     0
     0
     0

Thank you.

[Star Strider]

It does that because zeros are the most frequent, and it sets the other elements to zero, producing a zero vector here. The impression I got from your original Question is that you wanted that result.

What result do you want from this vector?

[Maryam Hamrahi]

Sorry, it was my mistake. I have to correct it myself. I am thankful for your help.

[Star Strider]

My pleasure.