PMF-AMS Analysis Guide

Introduction

The PMF Evaluation Panel consists of 3 Igor procedure files (ipfs) called PMF_Execution, PMF_ViewResults, and PMF_Scatter. This wiki serves as the help and documentation for the software. To run PMF with the panel, the PMF executable and associated files, accessed separately, are required (see Section 3, Installing PMF with Igor). The PMF executable is compiled only for Windows/DOS. It is possible to execute PMF on a Windows computer and then analyze the experiment on a Macintosh.

The ipfs were written by Ingrid Ulbrich and Donna Sueper (Jimenez Group, University of Colorado, Boulder) and Greg Brinkman (Hannigan Group, University of Colorado, Boulder). Questions about this codecan be addressed to Ingrid or Donna at ulbrich@colorado.edu or dsueper@colorado.edu.

PMF (Positive Matrix Factorization) was developed by Dr. P. Paatero (Dept. of Physics, University of Helsinki). One of the original papers describing this method is Paatero, 1997 P. Paatero, Least squares formulation of robust non-negative factor analysis, Chemometrics and Intelligent Laboratory Systems 37 (1997), pp. 23–35. First time users to PMF are encouraged to first read the documentation by Paatero regarding PMF (see Section 9, Other Resources).

This Igor toolkit was intended for use in analyzing AMS data, but there are only few assumptions in the toolkit relating to AMS-type data.

A Message to Contributors

We want to encourage active participation by all users in the evolution of the information contained within this wiki and welcome the addition of content that is beneficial to the community as a whole. However, please DO NOT delete any content from this page!! Significant time, effort, and deliberation has gone into the information contained in this page. Rather than deleting content, please feel free to voice your concerns by posting a comment to the discussion page where others can contribute (please be sure to include a topic to be referenced in responses).