FIX Calinski and Harabasz score description
@@ -255,8 +255,8 @@ def calinski_harabasz_score(X, labels):
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.
+ The score is defined as ratio of the sum of between-cluster dispersion and
+ of within-cluster dispersion.
Read more in the :ref:`User Guide <calinski_harabasz_index>`.
