[Ifeffit] running ifeffit under 64-bit windows7

["Dr. Dariusz A. Zając"]

Hi,
maybe these below clarify a little bit the problem, but the problem 
sounds very intriguing
http://millenia.cars.aps.anl.gov/pipermail/ifeffit/2004-July/005729.html
http://millenia.cars.aps.anl.gov/pipermail/ifeffit/2005-October/006613.html
http://cars9.uchicago.edu/ifeffit/FAQ/FeffitModeling

I am waiting also for the answer from authors

Do you see changes in the fit in R or/and K space, between systems? I 
suppose that all input parameters were identical...

regards
kicaj

W dniu 12-03-10 15:17, Sameh Ibrahim Ahmed pisze:
> Hi,
> I have used ARTEMIS to fit the EXAFS of a simple Cu foil with the two 
> diffrent machines, a 32 bit and 64 bit ones, both running widows7, 32 
> ans 64 bit respectively.
> The results obtained are slightly different, I have appended the 
> message with these results. the very low value of R-factor produced 
> with the 64bit system is difficult to interpret. the questions are;
> 1- how to account for these differences?
> 2- if I to publish something, which measure of the quality should I 
> present? and how can I interpret it?
> regards
> Sameh
> ============================================================
> 32bit windows 7
> Independent points          =      12.172851562
> Number of variables         =       6.000000000
> Chi-square                  =      53.001967099
> Reduced Chi-square          =       8.586301900
> R-factor                    =       0.000163791 !!!
> Measurement uncertainty (k) =       0.000110566
> Measurement uncertainty (R) =       0.057163282
> Number of data sets         =       1.000000000
>
> Guess parameters +/- uncertainties  (initial guess):
>   amp             =     0.9907500   +/-      0.0312520    (1.0000)
>   enot            =     5.6814210   +/-      0.3815760    (0.0000)
>   delr1           =     0.0016460   +/-      0.0033990    (0.0000)
>   ss1             =     0.0099820   +/-      0.0004090    (0.0030)
>   w1 3rd cumulant =     0.0001710   +/-      0.0000340    (0.0000)
>   p1 4th cumulant =     0.0000240   +/-      0.0000070    (0.0000)
>
> ============================================================
> 64bit windows 7
> Independent points          =      12.172851562
> Number of variables         =       6.000000000
> Chi-square                  =      54.036163164
> Reduced Chi-square          =       8.753841335
> R-factor                    =   0.309664502E-06 !!!
> Measurement uncertainty (k) =       0.000097377
> Measurement uncertainty (R) =       0.050344538
> Number of data sets         =       1.000000000
>
> Guess parameters +/- uncertainties  (initial guess):
>   amp             =     1.0029100   +/-      0.0296670    (1.0000)
>   enot            =     5.7522760   +/-      0.4614510    (0.0000)
>   delr1           =     0.0024980   +/-      0.0040190    (0.0000)
>   ss1             =     0.0101430   +/-      0.0003790    (0.0030)
>   w1 3rd cumulant =     0.0001780   +/-      0.0000410    (0.0000)
>   p1 4th cumulant =     0.0000260   +/-      0.0000070    (0.0000)
> ============================================================
>
>
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