Function cut_dendrogram 

pub fn cut_dendrogram(
    dendrogram: &ElasticDendrogram,
    k: usize,
) -> Result<Vec<usize>, FdarError>

Cut a dendrogram to produce k clusters.

Replays the merge history, stopping after n - k merges, and returns cluster labels for each original observation.

Arguments

• dendrogram — Result of elastic_hierarchical.
• k — Number of clusters desired.

Errors

Returns FdarError::InvalidParameter if k < 1 or k > n.