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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.