# sklearn.metrics.calinski_harabasz_score¶

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

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
Xarray-like, shape (n_samples, n_features)

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

labelsarray-like, shape (n_samples,)

Predicted labels for each sample.

Returns
scorefloat

The resulting Calinski-Harabasz score.

References

1

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