# Algorithm for determining variety **URL:** \ **Category:** Uncategorized\ **Created:** [August 25, 2006, 9:59pm UTC](https://forum.kirupa.com/t/algorithm-for-determining-variety/198541 "2006-08-25T21:59:59Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![TheRiddler](https://avatars.discourse-cdn.com/v4/letter/t/f9ae1b/32.png) [@TheRiddler](https://forum.kirupa.com/u/TheRiddler)\ **Post date:** [August 25, 2006, 9:59pm UTC](https://forum.kirupa.com/t/algorithm-for-determining-variety/198541/1 "2006-08-25T21:59:59Z")
Hey guys, it’s been awhile, I’m wondering if anybody has any ideas about an algorithm to see how many different variations there are within a set of data… For example, if I had: 1 1 1 1 2 3 3 2 1 1 4 The algorithm could figure that there are 4 different “types”. I don’t mean 4 numbers, because there are obviously more, but 4 varieties; of course, if I could be given a couple of hints as to how to go about count how many of the different types, that’d be appreciated, too. Thanks in advance.