pub trait HistogramCostExtractorConst: AlgorithmTraitConst {
fn as_raw_HistogramCostExtractor(&self) -> *const c_void;
fn get_n_dummies(&self) -> Result<i32> { ... }
fn get_default_cost(&self) -> Result<f32> { ... }
}Expand description
Abstract base class for histogram cost algorithms.
Required Methods
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fn as_raw_HistogramCostExtractor(&self) -> *const c_void
Provided Methods
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fn get_n_dummies(&self) -> Result<i32>
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