Struct BayesianAbResult 

pub struct BayesianAbResult {
    pub variant_a_id: String,
    pub variant_b_id: String,
    pub prob_b_beats_a: f64,
    pub expected_uplift: f64,
    pub posterior_mean_a: f64,
    pub posterior_mean_b: f64,
}

Result of a Bayesian A/B test comparison between two variants.

Uses Beta-Binomial conjugate updates to estimate the probability that variant B outperforms variant A on the selected metric.

Fields

variant_a_id: String

ID of the “control” variant (variant A).

variant_b_id: String

ID of the “treatment” variant (variant B).

prob_b_beats_a: f64

Estimated probability that variant B has a higher true rate than A. In [0.0, 1.0]; values > 0.95 are conventionally considered “significant”.

expected_uplift: f64

Expected uplift: E[rate_B] − E[rate_A] using posterior means.

posterior_mean_a: f64

Posterior mean of variant A’s rate.

posterior_mean_b: f64

Posterior mean of variant B’s rate.

Trait Implementations

impl Clone for BayesianAbResult

fn clone(&self) -> BayesianAbResult

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BayesianAbResult

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

Formats the value using the given formatter.

impl PartialEq for BayesianAbResult

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for BayesianAbResult