sklearn.metrics.calinski_harabasz_score

sklearn.metrics.calinski_harabasz_score(X, labels)

Compute the Calinski and Harabasz 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-Harabasz score.

References

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