scipy.spatial.distance.dice(u, v)[source]

Computes the Dice dissimilarity between two boolean 1-D arrays.

The Dice dissimilarity between u and v, is

\frac{c_{TF} + c_{FT}}
     {2c_{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,) ndarray, bool

Input 1-D array.

v : (N,) ndarray, bool

Input 1-D array.

Returns :

dice : double

The Dice dissimilarity between 1-D arrays u and v.

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