Hi,
I think the point about an R-factor of 42% is a bit more subtle than it comes
across in Martin’s reply. For random data without measurement errors (i.e.
coming from a Wilson distribution of intensities), the expected R-factor for
acentric data is something like 59%. The 42% in Evans & Mursh
Dear all,
I am sorry for a late reply. R-values should not exceed 0.42 which
happened in your case for shells 1.91-1.83 and 1.83-1.77. It is because
theoretically (under some assumptions), a perfect model gives an R
value of 0.42 against random data (Evans & Murshudov
2013 https://doi.org/10.1107/
Hi Liliana,
a few things to consider:
0) There is a Phenix mailing list for Phenix specific questions (phenixbb);
1) Bin completeness depends on (obviously) how binning is done (number of
reflections per bin or number of bins or binning in d^2 or d^3 spacing or
log-binning etc etc etc) -- all of
Hi Liliana,
Two things leap out at me when I look at your data summary.
(1) Your data probably do not go to 1.77Å. The CC1/2 in your outer shell is
below any of the usual thresholds. There are discussions to be had about what
the threshold is, but normally CC1/2 values of 0.5 or sometimes 0.3 a
