[Ifeffit] XANES

I have some question. I have mixed oxidation states and I would like to fit XANES, to determine the ratio of the mixed oxidation states I have. I looked at the documentations in the Ifeffit website but I could not find it. I have a license of feff. Would you please help me in how to fit XANES. I appreciate your help Ahmed ***************************************************** Ahmed Shahin Chemistry Department University of Missouri-Rolla 142 Schrenk Hall, Rolla, MO 65409-0010 E-mail: shahin@umr.edu Phone (573) 341-4083 "Make yourself a better person and know who you are before you try and know someone else and expect them to know you." *********************************************************