5.6.1.23. 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.