Struct Fit 

pub struct Fit {
    pub key: String,
    pub model: Option<Model>,
    pub half_life: Option<u32>,
    pub rates: Rates,
    pub pool: PoolFit,
    pub budget: Option<f64>,
    pub lambda: f64,
    pub sensitive: bool,
    pub labels: u32,
    pub dropped: u32,
}

What a decision draws from, fitted at borg learn (select/summary.rs refit), never in a hook. The default is the prior: no data, every decision the fixed rule’s.

Fields

key: String

The outcomes it was fitted on (select/summary.rs Summary::key: byte offset and hash), logged with each check (Log::fit) so a replay finds the same fit. Empty for the prior.

model: Option<Model>

The value model; None without a label.

half_life: Option<u32>

The forgetting’s half-life in sessions (None: none).

rates: Rates

pool: PoolFit

budget: Option<f64>

The engineer’s budget (pool tokens per session) in force at the fit, and its price per token (price); 0 without a budget.

lambda: f64

sensitive: bool

Whether ask’s or not-now’s effect changes sign when an unclear verdict counts as “no change” instead of missing: the label pipeline’s unclear share decides the sign, so read with care.

labels: u32

Labels the model read, and labels FIT_SESSIONS left out.

dropped: u32

Trait Implementations

impl Clone for Fit

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Fit

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

Formats the value using the given formatter.

impl Default for Fit

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Fit

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Fit

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Fit

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Fit