Dear All, 
          I have seen and also been told by few professors that when you report the fitting you must report the uncertainty associated with the measurement as evaluated by the program used for the fitting. 
Now, When I do the fitting I typically get the +/- values for E0, delR, ss and SO2. However, the N value we always put either 1,2 or such whole integers. Is there any way to find out the uncertainty associated with the coordination number (N used in XAFS equation)? 
If so how to find such uncertainty? can we see this in the log file generated after the fitting is over? 
Thank you very much for the help

Best Regards,
Pushkar Shejwalkar.
Post-doctoral -Researcher,JSPS Fellow
Hokkaido University,
Sapporo,
Japan