Opened 11 years ago

Closed 11 years ago

#340 closed feature (fixed)

Fitting FCC paracrystals

Reported by: antoni.sanchez@… Owned by: srkline
Priority: major Milestone:
Component: Analysis Keywords: nanoparticles cubic fitting
Cc: Blocking:


Dear Colleagues,

I am trying to fit the scattering curve from a SAXS experiment based on the aggregation in a FCC way of nanoparticles.
Unfortunately, the fit does not work since nothing happens.
This is the message appears afterwards:

V_chisq = 0

coef_FCC_ParaCrystal[0]= {0.0001,125,0.14,50,3.53e-05,9.45e-06,0.025}
NULL wave
fit time = 4.41636e-05 seconds

What can I do in order to get the fit? Could you please help me?

Thanks in advance!

Dr. Antoni Sanchez-Ferrer

Change History (1)

comment:1 Changed 11 years ago by srkline

  • Resolution set to fixed
  • Status changed from new to closed

Function was OK, it was a problem with the error column not being read in or generated correctly from SAXS data. Thus the chi-squared could not be calculated properly and the fit stopped immediately. This was resolved by generating a fake error column. I requested a copy of the original data file to see the actual format, but I haven't received it yet. Will try and patch the loader to account for it when I see it.


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