[Ifeffit] Too many points in pre-edge

[Carlo U. Segre]

Matt:

I am running into a somewhat annoying problem with continuous scan data 
imports into athena where there are many datapoints before the edge (I 
think > 400 or so).  With these files, the location of the edge (and 
element identification as well) using the first derivative does not work. 
The edge is identified as being somewhere in the pre-edge.  As I reduce 
the number of data points in the pre-edge, the edge identification moves 
closer to the true edge and then locks in correctly when the number of 
data points in the pre-edge is small enough (again, I think this is less 
than 400 points).

I can address this problem by running these data through a rebinning 
process in the pre-edge but I think that if it is possible to handle this 
in ifeffit, that would be a good idea.

On a second note, would you tell me whether you or Bruce is planning to 
maintain the ifeffit perl wrapper?  At this time, ifeffit 1.2.6a and horae 
046 have different versions of the Ifeffit.pm script (1.3 and 1.301 
respectively).  I recently ran into a problem because I had the ifeffit 
version and horae 046.

Carlo

-- 
Carlo U. Segre -- Professor of Physics
Associate Dean for Special Projects, Graduate College
Illinois Institute of Technology
Voice: 312.567.3498            Fax: 312.567.3494
Carlo.Segre at iit.edu    http://www.iit.edu/~segre