remove elements from a matrix

Hello,

I have a matrix 1080x840 filled with 0 and 1, like:

[1 1 1 1 1 1 0 0 0 0 0 ;

1 1 1 1 1 1 1 1 0 0 0 1;

1 1 1 1 1 0 0 0 1 0 0 1;

1 1 1 1 1 1 0 0 0 1 0 1]

where a "zero' appears I would like to change the ones located in the right of the zero to zero. So, the new matrix would be:

[1 1 1 1 1 1 0 0 0 0 0;

1 1 1 1 1 1 1 1 0 0 0 0;

1 1 1 1 1 0 0 0 0 0 0 0;

1 1 1 1 1 1 0 0 0 0 0 0]

How can I do that?

Answer 1

[Stephen23]

Very simply using cumprod:

>> M = [1,1,1,1,1,1,0,0,0,0,0,0;1,1,1,1,1,1,1,1,0,0,0,1;1,1,1,1,1,0,0,0,1,0,0,1;1,1,1,1,1,1,0,0,0,1,0,1]
M =
   1   1   1   1   1   1   0   0   0   0   0   0
   1   1   1   1   1   1   1   1   0   0   0   1
   1   1   1   1   1   0   0   0   1   0   0   1
   1   1   1   1   1   1   0   0   0   1   0   1
>> cumprod(M,2)
ans =
   1   1   1   1   1   1   0   0   0   0   0   0
   1   1   1   1   1   1   1   1   0   0   0   0
   1   1   1   1   1   0   0   0   0   0   0   0
   1   1   1   1   1   1   0   0   0   0   0   0

[Carlos_conde]

Thanks a lot