# scipy.spatial.distance.cosine¶

scipy.spatial.distance.cosine(u, v, w=None)[source]

Computes the Cosine distance between 1-D arrays. The Cosine distance between u and v, is defined as

$1 - \frac{u \cdot v} {||u||_2 ||v||_2}.$

where $$u \cdot v$$ is the dot product of $$u$$ and $$v$$.

Parameters: u : (N,) array_like Input array. v : (N,) array_like Input array. w : (N,) array_like, optional The weights for each value in u and v. Default is None, which gives each value a weight of 1.0 cosine : double The Cosine distance between vectors u and v.

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