Struct Deviation 

pub struct Deviation { /* private fields */ }

How far a measured value misses the bound it fails, relative to that bound, as an interval sure to hold the exact relative deviation.

Both ends are at least zero; the upper end may be infinite (a bound of zero, or a value known only from one side).

Implementations

impl Deviation

pub fn try_new(lower: f64, upper: f64) -> Option<Self>

A relative deviation in [lower, upper]; None unless 0 <= lower <= upper (NaN refused).

pub fn below(minimum: f64, lower: f64, upper: f64) -> Self

The shortfall of a value in [lower, upper] below minimum, relative to minimum: (minimum - value) / |minimum|, widened outwards so it holds the exact quotient. A bound of zero makes any shortfall infinitely large.

pub fn above(maximum: f64, lower: f64, upper: f64) -> Self

The excess of a value in [lower, upper] over maximum, relative to maximum: (value - maximum) / |maximum|, widened outwards.

pub fn worst(self, other: Self) -> Self

The larger of two deviations, as a finding naming several failing values is graded by the one missing most: an interval sure to hold the larger exact value.

pub fn least(self, other: Self) -> Self

The smaller of two deviations, as a value that may meet any of several alternative limits misses by as little as the nearest one.

pub fn lower(&self) -> f64

The least the exact deviation may be.

pub fn upper(&self) -> f64

The most the exact deviation may be.

Trait Implementations

impl Clone for Deviation

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Deviation

impl Debug for Deviation

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

Formats the value using the given formatter.

impl PartialEq for Deviation

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Deviation