scipy.spatial.distance.rogerstanimoto

scipy.spatial.distance.rogerstanimoto(u, v)

Computes the Rogers-Tanimoto dissimilarity between two boolean 1-D arrays.

The Rogers-Tanimoto dissimilarity between two boolean 1-D arrays u and v, is defined as

\[\frac{R} {c_{TT} + c_{FF} + R}\]

where \(c_{ij}\) is the number of occurrences of \(\mathtt{u[k]} = i\) and \(\mathtt{v[k]} = j\) for \(k < n\) and \(R = 2(c_{TF} + c_{FT})\).

Parameters:

u : (N,) array_like, bool

Input array.

v : (N,) array_like, bool

Input array.

Returns:

rogerstanimoto : double

The Rogers-Tanimoto dissimilarity between vectors u and v.