scipy.spatial.distance.russellrao

scipy.spatial.distance.russellrao(u, v)

Computes the Russell-Rao dissimilarity between two boolean 1-D arrays.

The Russell-Rao dissimilarity between two boolean 1-D arrays, u and v, is defined as

\[\frac{n - c_{TT}} {n}\]

where \(c_{ij}\) is the number of occurrences of \(\mathtt{u[k]} = i\) and \(\mathtt{v[k]} = j\) for \(k < n\).

Parameters:

u : (N,) array_like, bool

Input array.

v : (N,) array_like, bool

Input array.

Returns:

russellrao : double

The Russell-Rao dissimilarity between vectors u and v.