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Least Squares Python Packages

Python packages with the GitHub topic least-squares. Sorted by relevance, with stars and monthly downloads.
numericalalgorithmsgroup
dfo-ls

Python-based Derivative-Free Optimizer for Least-Squares

23K 47 16
bjodah
pyneqsys

Solve symbolically defined systems of non-linear equations numerically.

17K 52 6
xcsf-dev
xcsf

XCSF learning classifier system: rule-based evolutionary machine learning

7K 36 13
bdhammel
lsq-ellipse

Fitting an Ellipse using a Least Squares method, in Python

3K 160 46
tBuLi
symfit

Symbolic Fitting; fitting as it should be.

3K 244 19
econcz
pyclsp

A modular two-step convex optimization estimator for ill-posed problems

2K 1 0
Technologicat
wlsqm

Fast and accurate weighted least squares meshless interpolator for Python

2K 19 4
econcz
pytmpinv

Tabular Matrix Problems via Pseudoinverse Estimation

2K 1 0
Gattocrucco
lsqfitgp

A general purpose Gaussian process regression module

1K 11 0
Sm00thix
cvmatrix

Computation of training set (X^T * W * X) and (X^T * W * Y) or (X^T * X) and (X^T * Y) in a cross-validation setting using the fast algorithms by Engstrøm and Jensen (2025).

1K 21 2
numericalalgorithmsgroup
dfogn

DFO-GN: Derivative-Free Optimization using Gauss-Newton

1K 24 7
himoto
hillfit

Fitting the Hill Equation to Experimental Data

1K 13 3
econcz
pylppinv

Linear Programming via Regularized Least Squares

960 1 0
antononcube
regressionizer

Python package with a class that allows pipeline-like specification and execution of regression workflows.

803 2 0
berndporr
fir1

FIR & LMS filter implementation in C++ with Python & JAVA wrappers

612 84 23
powei-lin
tiny-solver

General factor graph solver in rust

523 18 2
powei-lin
py-minisam

No description available

493 2 0
Effective-Quadratures
equadratures

Polynomial approximations

484 100 46
NiMlr
pyfunctionbases

A Python module to compute multidimensional arrays of evaluated (orthogonal) functions.

385 11 0
Dipolar-Quantum-Gases
jaxfit

GPU/TPU accelerated nonlinear least-squares curve fitting using JAX

352 61 11
econcz
lppinv

Linear Programming via Regularized Least Squares

256 1 0
bschulz81
pyrobustregressionlib

A library that implements algorithms for linear and non-linear robust regression.

230 6 4
dudusegovia
mmq-high-precision

Solução robusta para o Método dos Mínimos Quadrados em Python. Projetada para ajustar polinômios de grau alto (10+) sem divergência. Integra aritmética de precisão infinita, correção automática para falta de dados e estabilização de matrizes mal-condicionadas. Ideal para modelagem matemática onde o NumPy padrão falha por erros de arredondamento.

185 1 1
davidkowalk
fitting-toolkit

A python package for modelling data with a high degree of flexibillity and control.

179 6 1
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