It may be time for our annual I/sigmaI discussion.
Please note that <I/sigmaI> is what the RCSB expects from you and it is
generally lower than <I>/<sigmaI>. Some packages do not output <I/sigmaI>
in an obvious place for you to put in your Table 1. :)
On Wed, 6 Oct 2010, Ed Pozharski wrote:
You don't need twinning to invalidate the Rmerge as a criterion for the
resolution cutoff, there are other reasons why you should use I/sigma
instead. If you process data all the way to 3A, what's the I/sigma in
the highest resolution shell?
On Wed, 2010-10-06 at 11:28 +0200, fulvio saccoccia wrote:
Dear all,
I have a data set collected at 3A resolution. I processed the data but I
had to cut the resolution at 3.6A for the high value of Rmerge (at 3.6A
it is 0.18). After scaling and MR I realized that my data were twinned.
This is my question: can I reprocess all the data set using all the
reflections up to 3A resolution even if the Rmerge is very high, knowing
that data are twinned? and also, is the Rmerge invalidate by the twinning?
