A couple of basic questions concerning the number of refinement parameters:
How do you come up with the number of parameters based on the number of atoms? I was under the impression it was simply the number of atoms times 4 (x,y,z,B), but I've seen some reported numbers that have left me confused.
Second, am I correct in thinking that for situations with strict NCS the number of total parameters is decreased by the number of parameters for one protomer multiplied by N-1, with N being N-fold NCS?
--paul
