Struct NullParams

pub struct NullParams {}

These are empty parameters, standard histograms don’t need any extra information.

Example

Basic Initialization is sufficient

let np = NullParams {};

Trait Implementations

impl Histogram<NullParams, usize, usize> for StandardHistogram

fn labels( &self, _params: &NullParams, ) -> Option<Box<dyn Iterator<Item = usize>>>

If possible, creates and returns an iterator for the labels for which the histogram has frequencies stored.

fn frequency(&self, label: usize, _params: &NullParams) -> Option<usize>

If possible, returns the frequency of a particular label. The behavior need only be defined if the label is in the set of values returned from labels.

fn total(&self) -> usize

the total number of data-points in the histogram

impl HistogramParams for NullParams