[phenixbb] Table 1 stastics

Nathaniel Echols nechols at lbl.gov
Thu Oct 18 08:07:44 PDT 2012

On Thu, Oct 18, 2012 at 7:53 AM, Andrew Waight <waight at msg.ucsf.edu> wrote:
>       Thanks for Phenix! Anyway quick question, I tried out the "generate
> Table1" utility for fun and noticed that my I/SigI and completeness do not
> match what is found in my XSCALE file.
> ...
> How does Phenix compute these parameters? Obviously my I/sigI has gotten
> much better (1.59 versus 0.85) but the scaling statistics should be the
> correct ones.

It computes these statistics directly from the reflection data you
provide, not the log file.  (The reasoning being that since these are
the data that Phenix actually uses, the statistics calculated from
them are more accurate and relevant than whatever the scaling program
thinks.)  My guess is that some of the internal processing accounts
for the difference - could you please send me the data file?

FYI, the plan for the future is to recalculate all of these statistics
from unmerged data rather than rely on parsing data processing
logfiles, which obey no standard format and are subject to change
without notice.


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