matrix vector substraction

 z=[1,2,3,4,5,6,7,8;4,5,6,7,8,9,0,1;1,2,3,4,5,6,7,8;10,11,12,13,0,0,0,0];
y=[1,2,3,4];

how can i find z-y without loops thanks.

Answer 1

[Sean de Wolski]

M = bsxfun(@minus,z,y')

assuming you want each row of y transpose (or column of y as it is) subtracted from each row of z. Otherwise you'll have to define how you want the subtraction to works since z/y are different sizes.

Answer 2

[Amey]

To do matrix subtraction, dimensions of both the matrices should be same. Here its not the case. Matrix z is 4*8 while matrix y is 1*4

Answer 3

[osman]

i want each row of y subtracted from each row of z.

[Sean de Wolski]

each column of y as it is, i.e. each row of y-transpose? See my answer.