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sklearn.metrics.calinski_harabaz_score

sklearn.metrics.calinski_harabaz_score(X, labels) [source]

Compute the Calinski and Harabaz score.

It is also known as the Variance Ratio Criterion.

The score is defined as ratio between the within-cluster dispersion and the between-cluster dispersion.

Read more in the User Guide.

Parameters:
X : array-like, shape (n_samples, n_features)

List of n_features-dimensional data points. Each row corresponds to a single data point.

labels : array-like, shape (n_samples,)

Predicted labels for each sample.

Returns:
score : float

The resulting Calinski-Harabaz score.

References

[1] T. Calinski and J. Harabasz, 1974. “A dendrite method for cluster analysis”. Communications in Statistics

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Licensed under the 3-clause BSD License.
http://scikit-learn.org/stable/modules/generated/sklearn.metrics.calinski_harabaz_score.html