Compare 2 arrays with find()

I have 2 arrays:

x = 1:1:3;
Points = [1 3 2 1 1 3 4];

I would like to use find() function comparing each element of 'Points' array with full 'x' array.

It would be similar to do:

find(Points(1) == x)
find(Points(2) == x)

... one by one, but I would like to do it at once without looping. However I get error if I do:

find(Points == x)

Answer 1

[Star Strider]

The ismember function may do what you want:

x = 1:1:3;
Points = [1 3 2 1 1 3 4];

[~,Out] = ismember(Points, x)

producing:

Out =
     1     3     2     1     1     3     0

Experiment with it to get the result you want.

[Rafael Luque]

Perfect! Thank you

[Star Strider]

As always, my pleasure!