Package-level declarations

Places cuts at the deepest valleys of a histogram of the data.

Produces the contiguous partition of sorted data that minimizes the total within-group sum of squared deviations, by the exact dynamic program of Fisher (1958), popularized in cartography as Jenks natural breaks.

Produces an initial contiguous partition of sorted data into a requested number of groups.

Partitions sorted data into groups of as nearly equal count as the value structure permits, by placing each cut at the admissible position closest to the corresponding sample quantile.