Enum DomainCompletion 

#[non_exhaustive]
pub enum DomainCompletion {
    PartialProjection,
    ConditionalExpectation,
    ZeroPad,
}

Strategy for handling unobserved domain.

Strategy comparison

• ConditionalExpectation (recommended): Best accuracy when the FPCA model is well-specified. Uses BLUP to predict scores from partial observations. Degrades gracefully as domain fraction decreases.
• PartialProjection: Computationally cheapest. Scales inner products by domain fraction. Acceptable when domain fraction > 0.7.
• ZeroPad: Simplest baseline. Fills unobserved region with the mean function. Biases scores toward zero for small domain fractions.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

PartialProjection

Partial inner products scaled by domain fraction.

ConditionalExpectation

Best Linear Unbiased Predictor (Yao et al., 2005).

ZeroPad

Pad unobserved region with the mean function.

Trait Implementations

impl Clone for DomainCompletion

fn clone(&self) -> DomainCompletion

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DomainCompletion

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

Formats the value using the given formatter.

impl PartialEq for DomainCompletion

fn eq(&self, other: &DomainCompletion) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for DomainCompletion