[Ifeffit] Importance and Edge Step

[Bruce Ravel]

> How about writing the relative intensities in % as well if not using
> "force to sum to 1"?

Doing so would presume a particular interpretation of the situation
where the weights don't sum to one.

You would expect the weights to sum to one if:
  1. The standards and data are all calibrated and aligned
     consistently and that any e0 parameters used in the fit are well
     understood 
  2. The standards and data are all normalized consistently
  3. The set of standards is representative of the contents of the
     unknown data

If the best fit is one where the "sum to 1" constraint is lifted and
the sum deviates considerably from 1, how do I know the reason a
priori?  So I (wearing my software developer hat) am hesitant to do
what you suggest for fear of biasing the interpretation of someone
else's data.

BTW, thanks for yesterday's posting, Gerrit.  It helped me find a
pretty large number of bugs in the LCF dialog.

B



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 Bruce Ravel  ----------------------------------- bravel at anl.gov  -or-
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