Hi, According to GSASNEWS.TXT from July 6,1999. "19. RAWPLOT now has the option for fitting positions, areas & shapes of up to 30 individual reflections in a powder pattern using the same profile functions available in GENLES."
GSASNEWS.TXT is part of the standard GSAS distribution and is in the main \gsas directory. The profile functions in GENLES are described in the GSAS Manual. The coefficients you refer to in your note are the ones for neutron TOF profile function #3 or #4. They are position, intensity, alpha, beta, sigma^2 and gamma. Bob Von Dreele -----Original Message----- From: ling yang [mailto:[EMAIL PROTECTED] Sent: Mon 3/22/2004 9:05 AM To: [EMAIL PROTECTED] Hi, May I ask what is the exact formula used by rawplot refinement? There are 6 parameters: pos, int, alp, bet, sig, gam, what are their meanings? If i want to compare the changes of a peak at different banks or different temperature, what is the most important parameter? Thanks:) Ling Yang PhD student in Dr. Wang's group 701 Scarboro Rd Oak Ridge, TN 37830 Tel: 865 574 0337 Fax: 865 241 5177
