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scipy.spatial.distance.russellrao¶

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

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.