2-Dimentional Function Minimization

This small coding project for DØ set out to minimize a combination of functions using ROOT and the Minuit framework. Additionally, the script would produce a contour plot of the resulting function with its minimum and 1-sigma contour.

Essentials

Date Spring 2006
Primary Goals To produce an automated script for minimizing a combination of 2-dim functions.
Software gcc, emacs, root, minuit
Hardware N/A

Background

A 2-dim parameterization can be used to represent a physical measurement and its error. Adding the functions of several measurements together results in a 'world average' of the value and its error. In the past DØ performed such averages by hand using Mathematica. This project aims to automate the process.

Results

The script was successfully completed and can be found below.

Files and Documentation

Source Code
Script Output Plot
A Better View of the Minimum



Last updated 07.30.2006