[phenixbb] generate r free flags in phenix.refine not obeying high resolution limit?

[Michael Hothorn]

Hi Pavel,

I'd like to add a question to this. Is there a way in phenix to inherit 
the test reflections from another reflection file i.e. in .mtz format?

thanks
Michael

Pavel Afonine wrote:
> Hi Francis,
>
> it is always the best to generate the free R flags for the whole dataset 
> and this is what phenix.refine does (I will have to double-check, 
> though). Because, for example, if you change your mind and later decide 
> to use more data, you will run into trouble with generating free R flags 
> for the rest of reflections for which you haven't done it in the beginning.
>
> Also, phenix.refine generates free R that are evenly distributed over 
> the resolution, making sure that relatively thin resolution bins receive 
> enough of reflections (to assure correct ML estimations).
>
> So, I don't see any problem here... Am I missing something?
>
> Pavel.
>
>
> On 8/20/2008 8:58 AM, Francis E Reyes wrote:
>   
>> Hi all
>>
>>
>> When generating R-Free flags from phenix refine, flags are generated  
>> all the way to the limit of the data. However, shouldn't flags be  
>> generated up to the limit of the data if specified via  
>> refinement.input.xray_data.high_resolutio
>> n ? If not, are the statistics for R/Rfree matching to high resolution  
>> data that may be suspicious ?
>>
>>
>> Thanks
>>
>> FR
>>
>> ---------------------------------------------
>> Francis Reyes M.Sc.
>> 215 UCB
>> University of Colorado at Boulder
>>
>> gpg --keyserver pgp.mit.edu --recv-keys 67BA8D5D
>>
>> 8AE2 F2F4 90F7 9640 28BC  686F 78FD 6669 67BA 8D5D
>>
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