mutual array between two matrix

Hi everyone I need to eradicate mutual arrays between matrix Y and matrix Z and put the rest of Z in another matrix to make more clear:

Y=[8,4,2,1,7,3,5,6];
Z=[5,2,1,6,8,3,4,7];

Now I need to choose for example '2' and '7' in Y and consequently eliminate '2' and '7' in Z and keep the rest of Z (5,1,6,8,3,4) in for example R

can someone tell me how to code that?

thank you all in advance.

[Hikaru]

This question is not that clear to me. What are the conditions to pick '2' and '7' in Y?

Answer 1

[Iain]

Two ways:

 R = setdiff(Z,Y);

That'll remove every element of Y that appears in Z.

Aleternatively, use this approach

 R = Z;
 eliminate_this = Y(1);
 R(R == eliminate_this) = [];

You'll need to add in the right loops, and index Y correctly.

Answer 2

[Azzi Abdelmalek]

Z=[5,2,1,6,8,3,4,7];
a=[2 7]
Z(ismember(Z,a))=[]

Answer 3

[Andrei Bobrov]

k = [2, 7];
t = ismember(k,Y);
if all(t)
    R = Z(~ismember(Z,k));
end