scipy.spatial.distance.russellrao¶

scipy.spatial.distance.
russellrao
(u, v, w=None)[source]¶ Computes the RussellRao dissimilarity between two boolean 1D arrays.
The RussellRao dissimilarity between two boolean 1D 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.
w : (N,) array_like, optional
The weights for each value in u and v. Default is None, which gives each value a weight of 1.0
Returns: russellrao : double
The RussellRao dissimilarity between vectors u and v.