[Ifeffit] Trouble with fitting with Arthemis
Scott Calvin
SCalvin at slc.edu
Tue Jan 13 16:20:31 CST 2009
Hi Kleper,
It looks a little to me like you don't actually have any paths
included in the fit, or perhaps the path is defective (all zeroed out,
or something like that). If you attach the project file, it will
probably be easy to tell.
--Scott
On Jan 13, 2009, at 5:13 PM, Kleper Oliveira Rocha wrote:
> Hi all,
>
> Please, help me. When I try to do any fit in Arthemis, setting all
> parameters unless one, been this one any of the parameters, the fit
> gives for the answer -1.0000 +/- 0.000000 like example down. What is
> happening?
>
> ============================================================
> Independent points = 8.239257812
> Number of variables = 1.000000000
> Chi-square = 0.120000000E+37
> Reduced Chi-square = 0.165762849E+36
> R-factor = NaN
> Measurement uncertainty (k) = 0.000437667
> Measurement uncertainty (R) = 0.000724906
> Number of data sets = 1.000000000
>
> Guess parameters +/- uncertainties (initial guess):
> amp = -1.0000000 +/- 0.0000000 (1.0000)
> Set parameters:
> enot = 0
> delr = 0
> ss = 0.003
> c3 = 0.0001
> c4 = 0.00001
>
> --
> Kleper de Oliveira Rocha
> Chemical Engenieer Doctorated
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