Hi Rhine, Crysfire requires your peak positions to be ordered from lower to higher Q or 2theta (being Q=1/(d^2) in crysfire, instead of q=4*pi*sin(theta)/lambda) but they both grow in the same direction), which means higher to lower d-spacing. I don't think there is a command to order your peak positions after they are loaded, you'll need to load them again in the correct order. I hope this helps. Leo
On Wed, April 15, 2009 6:15 am, Stone Rhine wrote: > Dear friends, > > I am using Crysfire for indexing my powder patttern. After loading my > data, > there was a line 'Observed pattern needed sorting into ascending order of > Q....' What is the exact meaning of that? I could not use command 'sa' as > usual. The only available options were only save or exit. Can anybody tell > me what is wrong and what I should do at this stage? OR How to sort my > data? > Thanks a lot. > > Rhine >
