= Distance Measures

A bunch of distance measures that extend Array.

== Install

gem sources -a http://gemcutter.org sudo gem install distance_measures

== How to use

a = [1,1] b = [2,2]

a.euclidean_distance(b)

a.cosine_similarity(b)

a.jaccard_index(b)

a.jaccard_distance(b)

a.binary_jaccard_index(b)

a.binary_jaccard_distance(b)

a.tanimoto_coefficient(b)

a.haversine_distance(b)

This may or may not be the complete list, best thing is to check the source code.

There are also a couple bonus methods:

a.dot_product(b)

a.sum_of_squares

a.intersection_with(b)

a.union_with(b)

When your dealing with 1's and 0's

a.binary_intersection_with(b)

a.binary_union_with(b)

== Copyright

Copyright (c) 2010 reddavis. See LICENSE for details.