function opposite of ismember?

Hi, Is there a function that does the opposite of 'ismember' i.e. something like, 'isnotmember'?

So if:

    A = [1:10]
    B = [2,5,7]

ismember(A,B)

ans =

     0     1     0     0     1     0     1     0     0     0

But instead, I want

isnotmember(A,B)
ans = 
     1     0     1     1     0     1     0     1     1     1

Answer 1

[Matt Fig]

Use the logical negation symbol

~ismember(A,B)

or the functional form:

not(ismember(A,B))

[S]

Hi Matt, thanks for the quick reply.

The solution was easier than I thought...

Regardless, thanks! I really appreciate it.

[Lalit Patil]

 A = [1:10];
 B = [2,5,7];
 [flag,index] = ismember(B,A);
 v = A(index(flag))

I tried and find that i am able to find flag and index of ismember(B,A) function.

But, i can not find for ~ismember(A,B) and not(ismember(A,B))

So, how to find it..?

[Andrei Bobrov]

flag = ~ismember(B,A);
index = find(flag);

or

[out,index] = setdiff(A,B);

[Lalit Patil]

It works by

 flag = ~ismember(A,B);
 index = find(flag);

Thank you.