Enum ExtrapolationMethod 

pub enum ExtrapolationMethod {
    Error,
    Constant,
    Linear,
    Quadratic,
    Cubic,
    Periodic,
    Reflection,
    Exponential,
    PowerLaw,
    Spline,
    Akima,
    Sinusoidal,
    Rational,
    Confidence,
    Ensemble,
    Adaptive,
    Autoregressive,
    Zeros,
    Nearest,
    Mirror,
    Wrap,
    Clamped,
    GridMirror,
    GridConstant,
    GridWrap,
}

Enhanced extrapolation methods for interpolation.

This enum provides advanced extrapolation capabilities that go beyond the basic ExtrapolateMode enum. It allows for more sophisticated boundary handling and domain extension methods, including:

• Physics-informed extrapolation based on boundary derivatives
• Polynomial extrapolation of various orders
• Decay/growth models for asymptotic behavior
• Periodic extension of the domain
• Reflection-based extrapolation
• Domain-specific extrapolation models

Variants

Error

No extrapolation - return an error for points outside the domain

Constant

Use the nearest endpoint value (constant extrapolation)

Linear

Linear extrapolation based on endpoint derivatives

Quadratic

Quadratic extrapolation based on endpoint values and derivatives

Cubic

Cubic extrapolation preserving both values and derivatives at boundaries

Periodic

Extend domain as if the function is periodic

Reflection

Reflect the function at the boundaries

Exponential

Exponential decay/growth model for asymptotic behavior

PowerLaw

Power law decay/growth model for asymptotic behavior

Spline

Spline-based extrapolation using the full spline continuation

Akima

Akima extrapolation for stable polynomial continuation

Sinusoidal

Sinusoidal extrapolation for periodic data

Rational

Rational function extrapolation for poles/zeros behavior

Confidence

Confidence-based extrapolation with uncertainty bands

Ensemble

Ensemble extrapolation combining multiple methods

Adaptive

Adaptive extrapolation that selects the best method locally

Autoregressive

Autoregressive extrapolation using AR models

Zeros

Return zeros for all out-of-bounds points (SciPy ‘zeros’ mode)

Nearest

Use nearest boundary value (SciPy ‘nearest’/‘edge’ mode)

Mirror

Mirror reflection without repeating edge values (SciPy ‘mirror’ mode)

Wrap

Periodic wrapping (SciPy ‘wrap’ mode)

Clamped

Clamped boundary conditions with zero derivatives

GridMirror

Grid-specific mirror mode for structured grids

GridConstant

Grid-specific constant mode for structured grids

GridWrap

Grid-specific wrap mode for structured grids

Trait Implementations

impl Clone for ExtrapolationMethod

fn clone(&self) -> ExtrapolationMethod

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExtrapolationMethod

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

Formats the value using the given formatter.

impl PartialEq for ExtrapolationMethod

fn eq(&self, other: &ExtrapolationMethod) -> 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 Copy for ExtrapolationMethod

impl StructuralPartialEq for ExtrapolationMethod