Length's of matrix rows exclusing padding

Hi, I have a matrix which looks a little like

X = [ 0 1 0 1 0 1 1 0 ]
    [ 0 1 0 1 1 1 0 0 ]
    [ 0 1 1 1 1 0 0 0 ]

This matrix has hundreds of rows so I cant do this manually but I wish to find the length of each vector in the array between the first 1 and the last 1 in each row

In this example it would be :

   Y = [ 6 ]
       [ 5 ]
       [ 4 ]

Can somebody suggest how to do this.

Please note that I have simplified this problem and the numbers I have are not actually all 1's but vary between 1-10 ish.

Thanks :-)

Answer 1

[Akira Agata]

If each row in X has at least one non-zero value, the following code can calculate Y.

X = [ 0 1 0 1 0 1 1 0;...
  0 1 0 1 1 1 0 0;...
  0 1 1 1 1 0 0 0 ];

[r,c] = find(X);
Y = splitapply(@(x) max(x)-min(x)+1, c, r);

[Nick Keepfer]

Wow, lightning fast answer!

Works perfectly, thank you very much Akira, you're awesome!