Struct DenseTable 

pub struct DenseTable { /* private fields */ }

Arrow-backed dense table for tabular regression/classification data.

Features are ingested once, converted into a raw Arrow representation, and then binned into compact integer columns. The model trainers work primarily from those binned columns.

Implementations

impl DenseTable

pub fn new(x: Vec<Vec<f64>>, y: Vec<f64>) -> Result<Self, DenseTableError>

Construct a dense table with the default canary count and automatic numeric binning.

pub fn with_canaries( x: Vec<Vec<f64>>, y: Vec<f64>, canaries: usize, ) -> Result<Self, DenseTableError>

Construct a dense table while choosing how many canary copies to append.

pub fn with_options( x: Vec<Vec<f64>>, y: Vec<f64>, canaries: usize, numeric_bins: NumericBins, ) -> Result<Self, DenseTableError>

Construct a dense table with full preprocessing control.

pub fn n_rows(&self) -> usize

pub fn n_features(&self) -> usize

pub fn canaries(&self) -> usize

pub fn numeric_bin_cap(&self) -> usize

pub fn binned_feature_count(&self) -> usize

pub fn feature_column(&self, index: usize) -> FeatureColumnRef<'_>

pub fn feature_value(&self, feature_index: usize, row_index: usize) -> f64

pub fn is_missing(&self, feature_index: usize, row_index: usize) -> bool

pub fn is_binary_feature(&self, index: usize) -> bool

pub fn binned_feature_column(&self, index: usize) -> BinnedFeatureColumnRef<'_>

pub fn binned_value(&self, feature_index: usize, row_index: usize) -> u16

pub fn binned_boolean_value( &self, feature_index: usize, row_index: usize, ) -> Option<bool>

pub fn binned_column_kind(&self, index: usize) -> BinnedColumnKind

pub fn is_canary_binned_feature(&self, index: usize) -> bool

pub fn is_binary_binned_feature(&self, index: usize) -> bool

pub fn target(&self) -> &Float64Array

Trait Implementations

impl Clone for DenseTable

fn clone(&self) -> DenseTable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DenseTable

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

Formats the value using the given formatter.

impl TableAccess for DenseTable

fn n_rows(&self) -> usize

fn n_features(&self) -> usize

fn canaries(&self) -> usize

fn numeric_bin_cap(&self) -> usize

fn binned_feature_count(&self) -> usize

fn feature_value(&self, feature_index: usize, row_index: usize) -> f64

fn is_missing(&self, feature_index: usize, row_index: usize) -> bool

fn is_binary_feature(&self, index: usize) -> bool

fn binned_value(&self, feature_index: usize, row_index: usize) -> u16

fn binned_boolean_value( &self, feature_index: usize, row_index: usize, ) -> Option<bool>

fn binned_column_kind(&self, index: usize) -> BinnedColumnKind

fn is_binary_binned_feature(&self, index: usize) -> bool

fn target_value(&self, row_index: usize) -> f64

fn is_canary_binned_feature(&self, index: usize) -> bool