Crate numra_interp 

Interpolation and splines for Numra.

This crate provides 1D interpolation methods:

• Linear (Linear): Piecewise linear interpolation
• Cubic spline (CubicSpline): Natural, clamped, and not-a-knot variants
• PCHIP (Pchip): Monotonicity-preserving piecewise cubic Hermite
• Akima (Akima): Robust piecewise cubic (tolerant of outliers)
• Barycentric Lagrange (BarycentricLagrange): Stable polynomial interpolation

Author: Moussa Leblouba Date: 9 February 2026 Modified: 2 May 2026

Re-exports

pub use akima::Akima;

pub use cubic_spline::CubicSpline;

pub use error::InterpError;

pub use hermite::Pchip;

pub use linear::Linear;

pub use polynomial::BarycentricLagrange;

Modules

akima

Akima interpolation.

cubic_spline

Cubic spline interpolation.

error

Author: Moussa Leblouba Date: 9 February 2026 Modified: 2 May 2026

hermite

Piecewise Cubic Hermite Interpolating Polynomial (PCHIP).

linear

Piecewise linear interpolation.

polynomial

Polynomial interpolation via barycentric Lagrange formula.

Enums

Interp1dMethod

Interpolation method selector for interp1d.

Traits

Interpolant

Trait for 1D interpolants.

Functions

interp1d

Convenience: create an interpolant from data using the specified method.