Hi,
I'd like to know how GSAS (EXPGUI) calculates the atomic composition (through the RESULTS menu) of one phase with respect to the atomic fractional occupancy? How can I get to the same composition values from my fractional occupancies? Cheers, Irvin This message has been checked for viruses but the contents of an attachment may still contain software viruses which could damage your computer system: you are advised to perform your own checks. Email communications with the University of Nottingham may be monitored as permitted by UK legislation.