find few elements in vector

Hi!

Let's assume that I have a vector y=[3 5 6 7 9] and x=[5 9] How can I get the indices of elements in 'y' that are equal to 'x' without using cycle? I mean if I had x=5 ('x' is a scalar) I would write something like y==x or find(y==x) but 'x' is a vector. Thank you in advance

Answer 1

[Geoff Hayes]

Kerim - try using ismember or intersect to find those elements that are common to both arrays.

Answer 2

[Roger Stafford]

[~,ia] = intersect(y,x);

ia contains indices with respect to y of elements that lie both in y and in x.

[Kerim Khemraev]

Thank you! It helped

Answer 3

[Kerim Khemraev]

Geoff Hayes, Roger Stafford Thank you a lot! intersect function solves my problem