Hi Sajeev In XFIT the values of the observed data points in the xdd file needs to be all greater than 1. Simply copy the xdd file into a spread sheet and set values less than 1 to 1. alan
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Wednesday, 11 October 2006 7:22 AM To: rietveld_l@ill.fr Subject: XFit issue Hi, I am trying to do a profile fit using XFit. When I try to fit using Fit>Marqardt, I see an error statement which says, "values for all the XRD data points must be greater than or equal to 1" Can someone let me know what is the cause of this error. Thanks a lot. regards Sajeev Moorthiyedath
