Thank you, Eleanor, for an important reminder : obviously, one more recent and relevant paper is that by Read and McCoy (Acta Cryst, D, 2016)
[ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4784668/ | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4784668/ ] With best wishes, Sacha ----- Le 3 Oct 19, à 12:07, Eleanor Dodson <[email protected]> a écrit : > The maths for estimating the FOM during refinement in REFMAC is given in some > detail in the original paper. > However the assessment uses estimates of the observation standard uncertainly, > and SigmaA - the estimate of the resolution dependent error due to coordinate > errors and missing atoms - > and both these terms can be inaccurate. > Randy Read et al has suggested ways of improving the SigmaA estimates, and > better data processing SHOULD help with the measurement errors.. > So - beware but that is amn outline of the teheory > Eleanor > Refinement of macromolecular structures by the Maximum likelihood method. > G.N.Murshudov, A.A.Vagin, E.J.Dodson,(1997) Acta crystallogr. D53, 240-255 ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1
