Struct PCA 

pub struct PCA {
    pub n_components: Option<usize>,
    pub svd_solver: SvdSolver,
    pub center: bool,
    pub scale: bool,
    pub random_state: Option<u64>,
}

Principal Component Analysis

Fields

n_components: Option<usize>

Number of components to keep

svd_solver: SvdSolver

Whether to use SVD instead of eigendecomposition

center: bool

Whether to center the data

scale: bool

Whether to scale the data to unit variance

random_state: Option<u64>

Random state for randomized solver

Implementations

impl PCA

pub fn new() -> Self

Create a new PCA instance

pub fn with_n_components(self, n_components: usize) -> Self

Set the number of components to keep

pub fn with_svd_solver(self, solver: SvdSolver) -> Self

Set the SVD solver

pub fn with_center(self, center: bool) -> Self

Enable or disable centering

pub fn with_scale(self, scale: bool) -> Self

Enable or disable scaling

pub fn with_random_state(self, seed: u64) -> Self

Set random state for reproducibility

pub fn fit(&self, data: ArrayView2<'_, f64>) -> Result<PCAResult>

Fit the PCA model to the data

pub fn transform( &self, data: ArrayView2<'_, f64>, result: &PCAResult, ) -> Result<Array2<f64>>

Transform data using the fitted PCA model

pub fn inverse_transform( &self, data: ArrayView2<'_, f64>, result: &PCAResult, ) -> Result<Array2<f64>>

Inverse transform from component space back to original space

pub fn fit_transform( &self, data: ArrayView2<'_, f64>, ) -> Result<(Array2<f64>, PCAResult)>

Fit and transform in one step

Trait Implementations

impl Clone for PCA

fn clone(&self) -> PCA

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PCA

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

Formats the value using the given formatter.

impl Default for PCA

fn default() -> Self

Returns the “default value” for a type.