Struct CapabilityIntervals 

pub struct CapabilityIntervals {
    pub confidence: f64,
    pub cp: Option<ConfidenceInterval>,
    pub cpk: Option<ConfidenceInterval>,
    pub pp: Option<ConfidenceInterval>,
    pub ppk: Option<ConfidenceInterval>,
}

Confidence intervals for the capability indices – see CapabilityIndices::intervals.

An index’s interval is None when the index is, and the short-term pair (cp, cpk) is None unless the degrees of freedom of the within sigma were given: they depend on how that sigma was estimated, which the indices do not record.

Fields

confidence: f64

Confidence level of every interval, in (0, 1).

cp: Option<ConfidenceInterval>

Cp, from the chi-square distribution of the within variance.

cpk: Option<ConfidenceInterval>

Cpk, by Bissell’s normal approximation.

pp: Option<ConfidenceInterval>

Pp, from the chi-square distribution of the sample variance (n - 1 df).

ppk: Option<ConfidenceInterval>

Ppk, by Bissell’s normal approximation (n - 1 df).

Trait Implementations

impl Clone for CapabilityIntervals

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 CapabilityIntervals

impl Debug for CapabilityIntervals

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

Formats the value using the given formatter.

impl PartialEq for CapabilityIntervals

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CapabilityIntervals