MATLAB: How can i split matrix into two part

MATLABmatrix

i have this matrix 
PP =
    11     8     2    10     1     4     6     5     9     7    12     3
     4     3     5     7     6     9    11     1     2     8    12    10
     4    11     9    10    12     2     6     5     8     1     7     3
     3     9     2     7     6     8    11    12     1     4    10     5
i want to split this matrix into to part
so code like this
v=2
p1=[PP(1:v,:)];
p2=[PP(PP-v+1:end,:)];
v=2 means that i want to split into two row..
the 1st and 2nd row is in p1, and the 3rd and 4th in p2..
for p1 i got the code correctly however for p2 i didnt get it right
i put v because if the matrix change to 6×6 or 10×10 , i want to change the value of v into what ever i want..

Best Answer

p1 = PP(1:v,:);
p2 = PP(v+1:end,:);
Note that I got rid of the superfluous square brackets.
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