You cannot directly compare R-factors because they are calculated over different sets of data. It's apples and oranges.
Your R-factor gap is a bit large too, perhaps your model can be improved a bit for instance by using tighter geometric restraints. Cheers, Robbie > -----Original Message----- > From: CCP4 bulletin board [mailto:[email protected]] On Behalf Of > Sam Tang > Sent: Friday, July 05, 2019 15:49 > To: [email protected] > Subject: Re: [ccp4bb] resolution > > Dear all > > Hello again > > Thanks a lot for the numerous input. > > I received a dataset which was processed to 2.4A but refined to 3A -- this was > the background I raised this question in the first place. Then I looked at the > aimless statistics. At 2.4A the high resolution bin CC1/2 0.626, I/sigI 2.0, > Completeness 84.6, Multiplicity 1.7 (P1 spacegroup). I suspect the reason for > the refinement resolution limit to be set at 3 A was simply due to better > Rw/Rf (0.236/0.294 at 3A; 0.284/0.341 at 2.4A). > > Based on these information am I justified to say that data quality at 2.4 A > was > suboptimal? In this case do you think refining at a (much) lower resolution is > acceptable? > > > Best regards > > Sam > > On Fri, 5 Jul 2019 at 13:43, Sam Tang <[email protected]> wrote: > > > Hello everyone > > Sorry for a naive question. Is there any circumstances where one > may wish to refine to a lower resolution? For example if one has a dataset > processed to 2 A, is there any good reasons for he/she to refine to only, say > 2.5 A? > > Thanks! > > Sam Tang > > > ________________________________ > > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1 ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1
