Struct Histogram 

pub struct Histogram {
    pub edges: Vec<f64>,
    pub counts: Vec<usize>,
}

An equal-width histogram over the non-missing values of a numeric column.

The bin count follows Sturges’ rule (ceil(log2(n) + 1), floored at 1). edges.len() == counts.len() + 1; the final bin is inclusive of its upper edge so the maximum value is never dropped.

Fields

edges: Vec<f64>

Bin edges, ascending. Length is counts.len() + 1 (empty for an empty column).

counts: Vec<usize>

Number of values falling into each bin. Length is one less than edges.

Implementations

impl Histogram

pub fn nbins(&self) -> usize

Returns the number of bins (== counts.len()).

pub fn max_count(&self) -> usize

Returns the count in the tallest bin, or 0 for an empty histogram.

Trait Implementations

impl Clone for Histogram

fn clone(&self) -> Histogram

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Histogram

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for Histogram

fn eq(&self, other: &Histogram) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Histogram