[phenixbb] does phenix.refine ignore F-obs, SIGF-obs?
Scott Classen
sclassen at lbl.gov
Thu Mar 11 11:57:50 PST 2010
Hello,
On Mar 11, 2010, at 10:03 AM, Pavel Afonine wrote:
> Hi Scott,
>
>> I have an mtz file that has:
>>
>> I-obs
>> SIGI-obs
>> F-obs
>> SIGF-obs
>>
>> I want phenix.refine to use F-obs and SIGF-obs, but even though I
>> provide :
>> labels = "F-obs,SIGF-obs"
>
>
> by default phenix.refine takes I-obs,SIGI-obs. You need to tell phenix.refine explicitly that you want to use F-obs,SIGI-obs.
OK it looks like phenix.refine IS using the F-obs and SIGF-obs, but it is still rejected a couple thousand reflections that have values <= 0.
Can phenix.refine be directed to use F-obs <= 0?
in particular can either of these flags be given slight negative numbers?
input.xray_data.sigma_fobs_rejection_criterion= -0.1
input.xray_data.sigma_iobs_rejection_criterion= -0.1
BTW what does this flag do?
input.xray_data.ignore_all_zeros= True
Thanks,
Scott
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