Struct LastValueRegressor 

pub struct LastValueRegressor { /* private fields */ }

A regressor that always predicts the last observed target.

Implementations

impl LastValueRegressor

pub fn new(config: BaselineConfig) -> Result<Self, RillError>

Create a new last-value regressor.

pub const fn last_value(&self) -> Option<f64>

The last observed target, if any.

Trait Implementations

impl Clone for LastValueRegressor

fn clone(&self) -> LastValueRegressor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LastValueRegressor

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

Formats the value using the given formatter.

impl Default for LastValueRegressor

fn default() -> Self

Returns the “default value” for a type.

impl OnlineRegressor for LastValueRegressor

fn feature_count(&self) -> usize

The number of features the model expects.

fn samples_seen(&self) -> u64

How many training samples the model has seen so far.

fn predict(&self, _features: &[f64]) -> Result<f64, RillError>

Predict the target for the given feature slice.

fn learn(&mut self, _features: &[f64], target: f64) -> Result<(), RillError>

Update the model using a single labeled sample.

fn reset(&mut self)

Reset the model to its initial state, as if no samples had been seen.