Hi all
One should be aware of some stats about twinning (and in general):
1) If you have perfect hemihedral twinning and no correlated
rotational NCS then random R factors are around 40 instead of
Luzzati's 58.
2) If you have perfecthemihedral twinning and you are not modelling
twin then r
Hi Wim,
Am 14.08.2008 um 13:53 schrieb Wim Burmeister:
...
Twinning has two effects:
The effective ration of observations/variables decreases with
increasing twinning fraction.
...
I don't know how REFMAC5 handles twinning, but if the structure is
simply split into two identical parts, eac
Jan Abendroth a écrit :
Hi all,
kind of a weird problem - the R-factors of a refinement using the new
twin refinement in refmac are low, almost suspiciously low:
A good 1.9AA data set, space group H3/R3, many statistics starting
with truncate's cumulative intensity distribution clearly suggest
Hi all,
kind of a weird problem - the R-factors of a refinement using the new
twin refinement in refmac are low, almost suspiciously low:
A good 1.9AA data set, space group H3/R3, many statistics starting
with truncate's cumulative intensity distribution clearly suggest
twinning. The structu
