Processing problem

From: <kavya
Date: 29 September 2011 18:43


Dear users,

I was trying to process a C2221 data in two different versions
of imosflm (7.0.4 and 7.0.7) using same set of frames, later on
scaled using scala in ccp4 6.1.2. But for m surprise the statistics
were quite different in two cases:

In case of 7.0.4:
                                 Overall       InnerShell   OuterShell
 Low resolution limit             42.37        42.37         2.11
 High resolution limit             2.00         6.32         2.00
 Rmerge                            0.079        0.027        0.521
 Average mosaicity:     1.53

In case of 7.0.7:
                                  Overall      InnerShell      OuterShell
 Low resolution limit             42.35        42.35            2.11
 High resolution limit             2.00         6.32            2.00
 Rmerge                            0.069        0.020          0.500
Average mosaicity:     2.54

Can anyone explain the reason for such and ambiguity?

Thanking you
With Regards
M. Kavyashree




----------
From: harry powell

Hi

We "improved" the code between the two versions - i.e. we made changes that should make processing more reliable. In particular, we changed the way the different parts of partial reflections are apportioned in the postrefinement, which was intended to make the refinement of the mosaicity more stable.

Harry
--
Dr Harry Powell,