Struct StrategyEvidence 

pub struct StrategyEvidence {

    pub strategy: DiffStrategy,
    pub cost_full: f64,
    pub cost_dirty: f64,
    pub cost_redraw: f64,
    pub posterior_mean: f64,
    pub posterior_variance: f64,
    pub alpha: f64,
    pub beta: f64,
    pub dirty_rows: usize,
    pub total_rows: usize,
    pub total_cells: usize,
    pub guard_reason: &'static str,
    pub hysteresis_applied: bool,
    pub hysteresis_ratio: f64,
}

Evidence supporting a strategy decision.

Provides explainability for the selection, showing expected costs and the posterior state that led to the decision.

Fields

strategy: DiffStrategy

The selected strategy.

cost_full: f64

Expected cost of Full strategy.

cost_dirty: f64

Expected cost of DirtyRows strategy.

cost_redraw: f64

Expected cost of FullRedraw strategy.

posterior_mean: f64

Posterior mean of change rate p.

posterior_variance: f64

Posterior variance of change rate p.

alpha: f64

Current posterior α.

beta: f64

Current posterior β.

dirty_rows: usize

Number of dirty rows observed.

total_rows: usize

Total rows (height).

total_cells: usize

Total cells (width × height).

guard_reason: &'static str

Guard reason, if any.

hysteresis_applied: bool

Whether hysteresis prevented a switch.

hysteresis_ratio: f64

Hysteresis ratio used for the decision.

Implementations

impl StrategyEvidence

pub fn to_jsonl(&self) -> String

Format this evidence entry as a JSONL line for structured logging.

Trait Implementations

impl Clone for StrategyEvidence

fn clone(&self) -> StrategyEvidence

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StrategyEvidence

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

Formats the value using the given formatter.

impl Display for StrategyEvidence

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

Formats the value using the given formatter.