Struct FeatureImportance 

pub struct FeatureImportance { /* private fields */ }

Permutation Feature Importance kernel.

Computes feature importance by measuring how much model performance degrades when each feature is randomly shuffled. Features that cause larger degradation are more important.

Implementations

impl FeatureImportance

pub fn new() -> Self

Create a new Feature Importance kernel.

pub fn compute<F>( data: &DataMatrix, targets: &[f64], predict_fn: F, config: &FeatureImportanceConfig, feature_names: Option<Vec<String>>, ) -> FeatureImportanceResult

where F: Fn(&[f64]) -> f64,

Compute permutation feature importance.

Arguments

• data - Input features
• targets - True labels/values
• predict_fn - Model prediction function
• config - Configuration
• feature_names - Optional feature names

Trait Implementations

impl Clone for FeatureImportance

fn clone(&self) -> FeatureImportance

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FeatureImportance

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

Formats the value using the given formatter.

impl Default for FeatureImportance

fn default() -> Self

Returns the “default value” for a type.

impl GpuKernel for FeatureImportance

fn metadata(&self) -> &KernelMetadata

Returns the kernel metadata.

fn validate(&self) -> Result<(), KernelError>

Validate kernel configuration.

fn id(&self) -> &str

Returns the kernel ID.

fn requires_gpu_native(&self) -> bool

Returns true if this kernel requires GPU-native execution.

fn health_check(&self) -> HealthStatus

Perform a health check on this kernel.

fn shutdown(&self) -> Result<(), KernelError>

Graceful shutdown of the kernel.

fn refresh_config(&mut self, _config: &KernelConfig) -> Result<(), KernelError>

Refresh kernel configuration at runtime.