Hi Jacob, Perhaps this contains what you are after:
Acta Cryst. (2006). D62, 72–82 Evans Scaling and assessment of data quality Appendix A4, averaged intensities. I_h = (sum_l w_hl I_hl) / (sum_l w_hl) sI^2_h = 1 / sum_l w_hl (that's sigma I squared *1) where w_hl = 1 / sI^2_hl Best wishes, Graeme *1 turns out that this is a typo in the paper On 16 March 2010 23:00, Jacob Keller <j-kell...@md.northwestern.edu> wrote: > Dear Crystallographers, > > A basic question: what is the equation currently used to combine/merge > multiple measurements of I and sigI? (Or a reference would be fine as well > (or maybe better.)) > > Thanks, > > Jacob Keller > > ******************************************* > Jacob Pearson Keller > Northwestern University > Medical Scientist Training Program > Dallos Laboratory > F. Searle 1-240 > 2240 Campus Drive > Evanston IL 60208 > lab: 847.491.2438 > cel: 773.608.9185 > email: j-kell...@northwestern.edu > ******************************************* >
