Module em

Classes

EM
The Gaussian EM clusterer models the vectors as being produced by a mixture of k Gaussian sources.

Functions

euclidean_distance(u, v)
Returns the euclidean distance between vectors u and v.

source code

cosine_distance(u, v)
Returns the cosine of the angle between vectors v and u.

source code

demo()
Non-interactive demonstration of the clusterers with simple 2-D data.

source code

Function Details

Returns the euclidean distance between vectors u and v. This is equivalent to the length of the vector (u - v).

Returns the cosine of the angle between vectors v and u. This is equal to u.v / |u||v|.