Deleting a row y from a matrix

If I have a matrix A and I want to delete all the rows, y, in A such that y=[1 2 3];

Ex:

A=[ 1 2 3; 4 5 6; 7 8 9; 1 2 3]; y=[1 2 3];

I want to remove all the y vectors from A so that I have:

A=[4 5 6; 7 8 9];

Answer 1

[JESUS DAVID ARIZA ROYETH]

A(all(A==y,2),:)=[]

edit previous versions:

A(all(A==repmat(y,size(A,1),1),2),:)=[]

[Cantor Set]

it doesn't work

[JESUS DAVID ARIZA ROYETH]

it work for me, what is your Matlab Version?

 A=[ 1 2 3; 4 5 6; 7 8 9; 1 2 3]; y=[1 2 3];
A(all(A==y,2),:)=[]

Show any error?

[Cantor Set]

2016

[JESUS DAVID ARIZA ROYETH]

what does this show?

[Cantor Set]

Error using ==

Matrix dimensions must agree.

[JESUS DAVID ARIZA ROYETH]

try now:

A=[ 1 2 3; 4 5 6; 7 8 9; 1 2 3]; y=[1 2 3];
A(all(A==repmat(y,size(A,1),1),2),:)=[]