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?

 

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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

Tels. 55 016 3351-8694