CHIWEI: A code of goodness of fit tests for weighted and unweighted histograms

TL;DR

This paper introduces CHIWEI, a Fortran-77 program that performs goodness of fit tests for histograms with both weighted and unweighted entries, accommodating normalized and unnormalized weights.

Contribution

It provides a self-contained software tool for goodness of fit testing in histograms with various weighting schemes, filling a gap in existing methods.

Findings

Supports both weighted and unweighted histograms

Calculates test statistics for normalized and unnormalized weights

Provides a practical implementation in Fortran-77

Abstract

A self-contained Fortran-77 program for goodness of fit tests for histograms with weighted entries as well as with unweighted entries is presented. The code calculates test statistics for case of histogram with normalized weights of events and in case of unnormalized weights of events.