Jennifer, Yes. Start with SXTLDATA to read in the hkl file. It will ask for lots of stuff but you will only really need h,k,l,Fo & sig(Fo). Then go to EXPEDT to put in the rest of the stuff (atom positions, etc.). Bob Von Dreele
-----Original Message----- From: Jennifer Anderson [mailto:[EMAIL PROTECTED] Sent: Thu 2/26/2004 9:14 AM To: [EMAIL PROTECTED] Hello, Can I insert a single crystal data set into GSAS for a refinement without having to reduce the data? Can I start the refinement from the hkl intensity data file (ASCII), without entering the intrument specifics? ie orientation angles, attenuation and wavelength? My data set has already been reduced - I would just like to try the refinement. Jennifer ---------------------------------------------- Jennifer L. Anderson Ph.D. Candidate - Mineralogy Department of Geological Sciences Miller Hall (312), Queen's University Kingston, ON K7L 3N6 Tel: 613 483-7097