[Ifeffit] determining reasonable fitting parameters

Bruce Ravel bravel at bnl.gov
Wed Jul 27 16:08:58 CDT 2016


On 07/27/2016 04:56 PM, Matthew Marcus wrote:
> Oh, so it assumes that chi(k) = (mu(E(k))-spline(k))/const.?  Mine does
> (mu(E(k))-spline(k))/spline(k), which I guess has its own problems

Exactly.  Both solutions have problems.  The potential for trouble with 
"/const" seems less severe to me and easier to support (in the sense of 
supporting the use of a software package).  So that's why Athena does 
what she does.

B


-- 
  Bruce Ravel  ------------------------------------ bravel at bnl.gov

  National Institute of Standards and Technology
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