On Monday 21 November 2005 13:31, crojasa@unmsm.edu.pe wrote:

help in: why in my graphics the fit curve is more differents that data curve?. If that fit is ok, but the fit curve(red) is very underneath that data curve(blue).

Hi Chachi, It looks as though the fit was Fourier transformed with a different k-weight than was used with the data and paths. One possible cause is that you have the "kw" button checked in the plotting options section. There has been a bug in the past that caused the FT to be done incorrectly when that plotting option was chosen. Is the "kw" button checked in the upper right hand corner? Does the picture make more sense if you select any of the other k-weight button in the plotting options? Another possibility is that you are plotting data and paths along with an old fit and the old fit was somehow very different from the current fit. Hope that helps, B -- Bruce Ravel ---------------------------------------------- bravel@anl.gov Molecular Environmental Science Group, Building 203, Room E-165 MRCAT, Sector 10, Advance Photon Source, Building 433, Room B007 Argonne National Laboratory phone and voice mail: (1) 630 252 5033 Argonne IL 60439, USA fax: (1) 630 252 9793 My homepage: http://cars9.uchicago.edu/~ravel EXAFS software: http://cars9.uchicago.edu/~ravel/software/exafs/