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PcaReducer

oxirs_embed::pca_reducer

Struct PcaReducer

pub struct PcaReducer;

Expand description

Provides fit, transform, fit_transform, and inverse_transform for PCA.

Implementations§

impl PcaReducer

pub fn new() -> Self

Create a new reducer.

pub fn fit(data: &[Vec<f64>], config: &PcaConfig) -> Result<PcaModel, PcaError>

Fit a PcaModel on data.

Each row of data is a sample; each column is a feature.

pub fn transform( model: &PcaModel, data: &[Vec<f64>], ) -> Result<Vec<Vec<f64>>, PcaError>

Project data onto the components of a fitted model.

pub fn fit_transform( data: &[Vec<f64>], config: &PcaConfig, ) -> Result<(PcaModel, Vec<Vec<f64>>), PcaError>

Fit a model and immediately transform data.

pub fn inverse_transform( model: &PcaModel, reduced: &[Vec<f64>], ) -> Result<Vec<Vec<f64>>, PcaError>

Reconstruct approximate original-space vectors from reduced-space vectors.

pub fn explained_variance_ratio(model: &PcaModel) -> Vec<f64>

Return the fraction of total variance explained by each component.

pub fn cumulative_explained_variance(model: &PcaModel) -> Vec<f64>

Return the cumulative explained variance for each component.

Trait Implementations§

impl Debug for PcaReducer

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

Formats the value using the given formatter. Read more

impl Default for PcaReducer

fn default() -> PcaReducer

Returns the “default value” for a type. Read more

Auto Trait Implementations§

impl Freeze for PcaReducer

impl RefUnwindSafe for PcaReducer

impl Send for PcaReducer

impl Sync for PcaReducer

impl Unpin for PcaReducer

impl UnsafeUnpin for PcaReducer

impl UnwindSafe for PcaReducer

Blanket Implementations§

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where T: 'static + ?Sized,

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