Does Refmac prints this value (observations (with restraints) over parameter) somewhere in the log file? Maybe it does, and I just cannot find it. However, I do find the numbers of observation, restraints and atoms, so it is easy to calculate manually. But wouldn't it be useful to have this value calculated at each refinement step? Best regards, Daniel On Mon, 1 Oct 2007, Ian Tickle wrote: > [...] > we are working with an observation/parameter count ratio of say < > 3 (naturally I'm counting the geometric restraints with the X-ray > observations). > [...] -- Daniel Schlieper email: [log in to unmask] Molecular Motors Group phone: +44 1883 722306 (x 305) Marie Curie Research Institute fax : +44 1883 714375 The Chart, Oxted RH8 0TL, UK web : http://mc11.mcri.ac.uk