Struct ConfidenceInterval95 

pub struct ConfidenceInterval95 {
    pub lower: f64,
    pub upper: f64,
}

A symmetric 95 % confidence interval around a proportion.

Fields

lower: f64

Lower bound (clipped to 0).

upper: f64

Upper bound (clipped to 1).

Implementations

impl ConfidenceInterval95

pub fn wilson(successes: usize, n: usize) -> Self

Compute a Wilson-score 95 % confidence interval.

The Wilson interval is preferred over the naïve Wald interval because it behaves well at the extremes (p = 0 or p = 1) and for small N.

Formula: (p̂ + z²/2n ± z√(p̂(1−p̂)/n + z²/4n²)) / (1 + z²/n) where z = 1.96 for 95 % confidence.

Trait Implementations

impl Clone for ConfidenceInterval95

fn clone(&self) -> ConfidenceInterval95

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConfidenceInterval95

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ConfidenceInterval95

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ConfidenceInterval95

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for ConfidenceInterval95