Splines Python Packages

csaps

Cubic spline approximation (smoothing)

splinekit

SplineKit is a Python-based open-source software library aimed at the manipulation of one-dimensional periodic splines.

pretab

PreTab is a modular, scikit-learn-compatible representation and preprocessing library for tabular data. Its focus is feature representation and expansion: splines, neural basis maps, piecewise-linear encoding, kernel approximations, and language embeddings, each shipped as a standalone transformer that speaks the standard fit / transform.

xspline

Advanced spline package

splineops

Python and C++-based N-dimensional signal-processing library with support for GPU computing.

ferreus-rbf

ferreus_rbf - Fast global radial basis function (RBF) interpolation in Rust and Python

tinyspline

ANSI C library for NURBS, B-Splines, and Bézier curves with interfaces for C++, C#, D, Go, Java, Javascript, Lua, Octave, PHP, Python, R, and Ruby.

jizai

Fast and memory-efficient radial basis function (RBF) interpolation

splinecloud-scipy

A Python client for SplineCloud API

cssd

Smoothing splines for signals with discontinuities

scikit-numerical

Tools for numerical math calculations.

ferreus-bbfmm

ferreus_rbf - Fast global radial basis function (RBF) interpolation in Rust and Python

volsplineslib

VolSplinesLib is a Python library for interpolating implied volatility surfaces using various volatility models. The library provides tools for fitting and interpolating models to market data, supporting popular methods like RFV, SLV, SABR, and SVI.

sinflow

Sliced Iterative Normalizing Flow with Minimal Dependencies

dcebe

Estimation of bolus arrival times for DCE-MRI signals

whittaker

A Python library for Generalized Additive Models (GAMs) with flexible smoothing, principled inference, and beautiful visualizations.

rfest

A Python 3 toolbox for neural receptive field estimation using splines and Gaussian priors.

ferreus-rmt

ferreus_rbf - Fast global radial basis function (RBF) interpolation in Rust and Python

pyakima

Fast, Numba-compatible Akima/makima spline interpolation for regular and irregular grids

splinterpy

Library for multivariate function approximation with splines (B-spline, P-spline, and more) with interfaces to C++, C, Python and MATLAB

extensible-splines

Python Spline Interpolation. Interactive plot for quick testing of new spline kernels or control point usage.

cinx

Minimal, differentible, fast cubic interpolation in JAX