Hi Zhaomo, On Thu, Dec 20, 2012 at 7:13 PM, Zhaomo Tian wrote:

Dear XAFS community,

I think I need explain my 1st question in a more specific way for your better understanding.

If in one fitting round, we get the value of N*S02, E0, R, and sigma2 which is generated automatically, but if we are not satisfied with such result, then we need to fit again to get better value of N*S02, E0, R, and sigma2. so what are those things that I should do for next fitting round in order to get a different trial value of N*S02, E0, R, and sigma2?

The thing you should do to get different values for these parameters are those things that would influence the values of these parameters. Is that answer too general for you? Then ask a more specific question. --Matt