scipy.spatial.distance.jaccard¶
- scipy.spatial.distance.jaccard(u, v)[source]¶
Computes the Jaccard-Needham dissimilarity between two boolean 1-D arrays.
The Jaccard-Needham dissimilarity between 1-D boolean arrays u and v, is defined as
\[\frac{c_{TF} + c_{FT}} {c_{TT} + c_{FT} + c_{TF}}\]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: jaccard : double
The Jaccard distance between vectors u and v.