Re: [ccp4bb] Rfree statistics in SHELXL

2007-10-08 Thread Oliv Eidam
It is actually possible to calculate R(free) with SHELXL for the outer most resolution shell. Gabor Bunkoczi indicated the solution and I forward it here to the public: - Rename the .res file of the last refinement run to .ins - adjust the CGLS parameter in the .ins file to 0 -1 (Zero refinement

Re: [ccp4bb] Rfree statistics in SHELXL

2007-10-08 Thread George M. Sheldrick
age ----- > From: "George M. Sheldrick" <[EMAIL PROTECTED]> > Date: Monday, October 8, 2007 11:16 > Subject: Re: [ccp4bb] Rfree statistics in SHELXL > To: CCP4BB@JISCMAIL.AC.UK > > > SHELX is much older than the free R so this was added as an > > afte

Re: [ccp4bb] Rfree statistics in SHELXL

2007-10-08 Thread George M. Sheldrick
SHELX is much older than the free R so this was added as an afterthought, and unfortunately I did not think of calculating R-free for just the outer resolution shell. There isn't an easy way of doing this without some programmeing effort. I also think that it is NOT a good idea, in the outer re

[ccp4bb] Rfree statistics in SHELXL

2007-10-08 Thread Oliv Eidam
Dear all, I used SHELXL for anisotropic structure refinement of high-resolution data (1.3 Angstroem) and a reviewer asked me to include refinement statistics for the outer most resolution shell in the crystallographic table. While R-factors for the outer most resolution shell belong to the st