Re: [ccp4bb] R-Rfree vs resolution

2010-08-05 Thread joybeiyang
Hi All, Many thanks for replying to my request on R-Rfree vs resolution. Your wonderful advices are very helpful. 2010-08-05 joybeiyang

Re: [ccp4bb] R-Rfree vs resolution

2010-08-03 Thread Alexandre Urzhumtsev
Dear Bei, Pavel's statistic can be completed by the analysis of the most frequent values (modes) versus resolution. When the resolution is plotted in the LOG-scale, these most frequent values are practically linear functions giving their easy interpolation / extrapolation as

Re: [ccp4bb] R-Rfree vs resolution

2010-08-03 Thread Tom Oldfield
Bei You can do various statistics, including R-Rfree + resolution from the PDBeStatistics pages from this link http://www.ebi.ac.uk/pdbe-as/pdbestatistics/PDBeStatistics.jsp Specifically you can do the following for your query, but there are many other combinations you can try. Xtal

[ccp4bb] R-Rfree vs resolution

2010-08-02 Thread joybeiyang
Dear all, I remember that there used to be a post about the R-Rfree statistics vs different resolution, but can not find it now, could anybody shed a light on me? Thank you very much in advance! Best, Bei 2010-08-03 joybeiyang

Re: [ccp4bb] R-Rfree vs resolution

2010-08-02 Thread Pavel Afonine
Hi Bei, phenix.r_factor_statistics gives: Histogram of Rwork for models in PDB at resolution 0.6-99.0 A: 0.072 - 0.114 : 193 0.114 - 0.156 : 2120 0.156 - 0.198 : 12800 0.198 - 0.240 : 14449 0.240 - 0.282 : 2740 0.282 - 0.324 : 274 0.324 - 0.366 : 68 0.366 - 0.408 : 19 0.408 - 0.450 : 6 0.450 -