picking numbers from matrix

I have a matrix and it contains some numbers. I want to select a random number from each column in this matrix and print it in another single row matrix (one of the numbers except 0). but I don't want to print the 0 values to the new matrix.

example :

my matrix :

0 4 8

5 0 0

0 4 6

2 8 0

0 0 7

new matrix :

2 4 6

how can I do that?

Thank you,

Berfin.

Answer 1

[Stephen23]

M = [0,4,8;5,0,0;0,4,6;2,8,0;0,0,7]

M = 5×3

0 4 8 5 0 0 0 4 6 2 8 0 0 0 7

fh1 = @(v)v(randperm(numel(v),1));
fh2 = @(k)fh1(nonzeros(M(:,k)));
V = arrayfun(fh2,1:size(M,2))

V = 1×3

2 4 7

[Berfin Çetinkaya]

I have one more question. Can you help me?

, I have created such a code. My goal is to get the first, third, fifth, seventh etc from matrix A. was to assign values to the columns. ( ie odd numbers ) But I need the newM matrix to assign these values. I want to choose a random number from the second column (except 0) in the newM matrix and assign it to the first column in matrix A. I want to apply the same operation on multiple column.

example :

newM matrix:

0 5 8 3

1 7 0 4

5 4 2 1

4 0 6 7

A matrix:

1 8

5 6

4 4

4 5

(I chose random number from newM 4 times)

(a column in between leaves a space)

I know it's a bit confusing, but I need help because I can't do it. I will write the first phase value below. please help me. thanks

my code =

newM=birincifaz.*(1:size(birincifaz,1))';

birincifaz=

1 1 0 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

2 1 0 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

3 1 0 1 0 1 1 1 1 1 1 0 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

4 1 0 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

5 1 0 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

6 0 0 0 0 0 1 1 0 1 0 0 0 0 1 0 0 0 1 0 1 1 1 1 1 0 0 1 1 0 0 1 0 0 1 0 1 0 1 0 1 1 0 1 1 1 1 1 1 1 1 1 0 0 1 0 1 1 1 0 0 0 1 0 0 0 1 1 0 1

7 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

8 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

9 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

10 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1