Looking for an interactive and versatile tool for XAFS analysis? This paper introduces IFEFFIT, a program and library combining AUTOBK and FEFFIT algorithms with interactive graphics and data manipulation capabilities for XAFS analysis. IFEFFIT is scriptable and comes with a command-line program usable in both interactive and batch modes. Additionally, it provides a function library accessible from C, Fortran, Tcl, Perl, and Python, facilitating the creation of Graphical User Interfaces for rapid data analysis. Using this library, a Graphical User Interface for rapid 'online' data analysis is demonstrated. IFEFFIT is open-source, encouraging widespread use, collaborative development, and contributions. With its interactive capabilities and flexible scripting, IFEFFIT is a valuable resource for researchers.
Published in the Journal of Synchrotron Radiation, this paper directly addresses the journal's focus on advancements in synchrotron radiation techniques and their applications. By introducing IFEFFIT, a new software package for XAFS data analysis, the paper provides a valuable tool for the synchrotron radiation community. The open-source nature of IFEFFIT also aligns with the journal's goal of promoting collaboration and innovation in the field.