scipy.spatial.distance.braycurtis¶

scipy.spatial.distance.braycurtis(u, v)[source]¶

Computes the Bray-Curtis distance between two n-vectors u and v, which is defined as

$\sum{|u_i-v_i|} / \sum{|u_i+v_i|}.$

The Bray-Curtis distance is in the range [0, 1] if all coordinates are positive, and is undefined if the inputs are of length zero.

Parameters :

u : ndarray

An $n$ -dimensional vector.

v : ndarray

An $n$ -dimensional vector.

Returns :

d : double

The Bray-Curtis distance between vectors u and v.