MATLAB: Delete rows from matrix according to another matrix

remove rows from matrix

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

B= 5 6 7; 1 2 3

A and B are given,how to delete corresponding rows from matrix A according to matrix B? Try not to use loops. Thanks.

setdiff(A,B,'rows')

Just use some basic MATLAB logical indexing:

>> X = M(M(:,1)~=0,:)
X =
    1    1
    2    6
    3    5
    5   55
    6   56
    7   69
   11    2

[x2u, x2u_idx] = unique(x2, 'stable');
new_x = x(x2u_idx, :);