Struct Moments 

pub struct Moments {
    pub n: u64,
    pub mean: f64,
    pub power_sums: [f64; 7],
}

Mergeable accumulator of the count, mean and centred power sums up to order 8. See the module docs for the update formula.

Fields

n: u64

Number of samples.

mean: f64

Running mean.

power_sums: [f64; 7]

Centred power sums M_2 .. M_8 (index p - 2).

Implementations

impl Moments

pub fn new() -> Self

Empty accumulator.

pub fn push(&mut self, x: f64)

Add one sample.

pub fn merge(&mut self, other: &Moments)

Fold other into self (Pébay 2008).

pub fn central(&self, p: usize) -> f64

Central moment estimate μ_p = M_p / n (μ_0 = 1, μ_1 = 0).

pub fn summary(&self) -> Option<MomentSummary>

Mean, standard deviation, skewness, kurtosis and their standard errors. None if fewer than two samples or zero variance.

Trait Implementations

impl Clone for Moments

fn clone(&self) -> Moments

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Moments

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

Formats the value using the given formatter.

impl Default for Moments

fn default() -> Moments

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Moments

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Moments

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Moments

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Moments