Struct stats::Frequencies
[−]
[src]
pub struct Frequencies<T> { // some fields omitted }
A commutative data structure for exact frequency counts.
Methods
impl<T: Eq + Hash> Frequencies<T>
[src]
fn new() -> Frequencies<T>
Create a new frequency table with no samples.
fn add(&mut self, v: T)
Add a sample to the frequency table.
fn count(&self, v: &T) -> u64
Return the number of occurrences of v
in the data.
fn cardinality(&self) -> u64
Return the cardinality (number of unique elements) in the data.
fn mode(&self) -> Option<&T>
Returns the mode if one exists.
fn most_frequent(&self) -> Vec<(&T, u64)>
Return a Vec
of elements and their corresponding counts in
descending order.
fn least_frequent(&self) -> Vec<(&T, u64)>
Return a Vec
of elements and their corresponding counts in
ascending order.
fn len(&self) -> usize
Returns the cardinality of the data.
Trait Implementations
impl<T: Clone> Clone for Frequencies<T>
[src]
fn clone(&self) -> Frequencies<T>
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0
Performs copy-assignment from source
. Read more
impl<T: Debug + Eq + Hash> Debug for Frequencies<T>
[src]
impl<T: Eq + Hash> Commute for Frequencies<T>
[src]
fn merge(&mut self, v: Frequencies<T>)
Merges the value other
into self
.
fn consume<I: Iterator<Item=Self>>(&mut self, other: I)
Merges the values in the iterator into self
.
impl<T: Eq + Hash> Default for Frequencies<T>
[src]
fn default() -> Frequencies<T>
Returns the "default value" for a type. Read more
impl<T: Eq + Hash> FromIterator<T> for Frequencies<T>
[src]
fn from_iter<I: IntoIterator<Item=T>>(it: I) -> Frequencies<T>
Creates a value from an iterator. Read more
impl<T: Eq + Hash> Extend<T> for Frequencies<T>
[src]
fn extend<I: IntoIterator<Item=T>>(&mut self, it: I)
Extends a collection with the contents of an iterator. Read more