[Ifeffit] A very quick question

[Ahmed M Shahin]

Hello,
I would like to ask a very quick question and I would appreciate if someone can help me.
While running XANES fitting for mixed valence state metals such as cerium (3/4), should I use two arctangent functions with selected group of Lorentzian functions or I have to use only one arctangent function with a group of Gaussian functions?
I would appreciate if someone give some advice.
Yours,
Ahmed

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