picking numbers from matrix

I have a matrix and it contains some numbers. I want to pick a random number from each column in this matrix and print it in another matrix (one of the numbers excluding 0). My new matrix should have at least 50 rows. So I want to select and print the random values multiple times. But I don't want to print the 0 values to the new matrix.

give examples :

my matrix:

0 4 8

5 0 0

0 4 6

2 8 0

0 0 7

new matrix:

2 4 6

5 8 6

5 4 7

5 4 8

how can I do that?

Thank you,

Berfin.

[Matt J]

This question seems essentially the same as,

https://www.mathworks.com/matlabcentral/answers/1673894-picking-numbers-from-matrix?s_tid=srchtitle

Can't you just apply that solution 50 times (in a loop, that is)?

[Berfin Çetinkaya]

I don't know how to apply it in loop

Answer 1

[David Hill]

A=[0 4 8
   5 0 0
   0 4 6
   2 8 0
   0 0 7];
for k=1:size(A,2)
    r=unique(A(:,k));
    r=r(r~=0);
    B(:,k)=r(randi(length(r),50,1));
end

[Berfin Çetinkaya]

Thank a lot of