I know I could use variations of this answer to find out how many different types of data there are in an array:
How to count the number of certain element in an array?
But, what I am looking for is whether there is a simple way to count how many different types of data there are in an array:
I have arrays which may have 0, 1, or 2 as values
so it could be:
a = [1,2,0,1,1,1];
or they may all be the same and a different length:
a = [1,1,1,1,1,1,1,1,1,1,1,1,1];
Any help appreciated. Thanks.