Struct PicardConfig 

pub struct PicardConfig {

    pub density: DensityType,
    pub n_components: Option<usize>,
    pub ortho: bool,
    pub extended: Option<bool>,
    pub whiten: bool,
    pub centering: bool,
    pub max_iter: usize,
    pub tol: f64,
    pub m: usize,
    pub ls_tries: usize,
    pub lambda_min: f64,
    pub w_init: Option<Array2<f64>>,
    pub fastica_it: Option<usize>,
    pub jade_it: Option<usize>,
    pub random_state: Option<u64>,
    pub verbose: bool,
}

Configuration parameters for the PICARD algorithm.

Fields

density: DensityType

Density function to use for ICA.

n_components: Option<usize>

Number of components to extract. If None, uses min(n_features, n_samples).

ortho: bool

If true, uses Picard-O with orthogonal constraint.

extended: Option<bool>

If true, uses extended algorithm for sub/super-Gaussian sources. Defaults to same value as ortho if not specified.

whiten: bool

If true, perform whitening on the data.

centering: bool

If true, center the data before processing.

max_iter: usize

Maximum number of iterations.

tol: f64

Convergence tolerance for gradient norm.

m: usize

Size of L-BFGS memory.

ls_tries: usize

Maximum line search attempts.

lambda_min: f64

Minimum eigenvalue for Hessian regularization.

w_init: Option<Array2<f64>>

Initial unmixing matrix. If None, uses random initialization.

fastica_it: Option<usize>

Number of FastICA iterations before PICARD. If None, skip FastICA.

jade_it: Option<usize>

Number of JADE iterations before PICARD. If None, skip JADE. JADE (Joint Approximate Diagonalization of Eigenmatrices) can provide a better warm start than FastICA for some data distributions.

random_state: Option<u64>

Random seed for reproducibility.

verbose: bool

If true, print progress information.

Implementations

impl PicardConfig

pub fn new() -> Self

Create a new configuration with default values.

pub fn builder() -> ConfigBuilder

Create a builder for constructing a configuration.

pub fn effective_extended(&self) -> bool

Get the effective value of extended (defaults to ortho if not set).

pub fn validate(&self) -> Result<(), PicardError>

Validate the configuration.

Trait Implementations

impl Clone for PicardConfig

fn clone(&self) -> PicardConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for PicardConfig

fn default() -> Self

Returns the “default value” for a type.