Karlsruhe Fit Environment 2 (kafe2)

kafe2 (Karlsruhe Fit Environment 2) is an open-source Python package (current version 2.11.0) for likelihood-based parameter estimation and elementary data analysis. Primarily used for fitting models to measured data and visualizing results, it provides a user-friendly interface for state-of-the-art statistical methods, relying on established numerical and optimization libraries like NumPy and SciPy. The library aims to offer an easy-to-use and performance-optimized pipeline for data analysis, including parameter confidence intervals and publication-quality plots. It typically sees a few releases per year.