russellrao(u, v, w=None)
The Russell-Rao dissimilarity between two boolean 1-D arrays, u and v, is defined as
where $c_{ij}$ is the number of occurrences of $\mathtt{u[k]} = i$ and $\mathtt{v[k]} = j$ for $k < n$ .
Input array.
Input array.
The weights for each value in u and v. Default is None, which gives each value a weight of 1.0
Compute the Russell-Rao dissimilarity between two boolean 1-D arrays.
>>> from scipy.spatial import distance
... distance.russellrao([1, 0, 0], [0, 1, 0]) 1.0
>>> distance.russellrao([1, 0, 0], [1, 1, 0]) 0.6666666666666666
>>> distance.russellrao([1, 0, 0], [2, 0, 0]) 0.3333333333333333See :
The following pages refer to to this document either explicitly or contain code examples using this.
scipy.spatial.distance.cdist
scipy.spatial.distance.russellrao
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