[phenixbb] map scaling: sigma or volume scaled

Edward A. Berry BerryE at upstate.edu
Wed Mar 6 20:14:41 PST 2013


Thanks, Pavel!

Pavel Afonine wrote:
> Yes, but F000 is not included.
>
> Pavel
>
> On 3/6/13 8:04 PM, Edward A. Berry wrote:
>> Pavel Afonine wrote:
>>> Hi Ed,
>>>
>>> volume scaling - simply normalizing map coefficients by unit cell volume
>>> (as opposed to normalizing by standard deviations, which "sigma
>>> scaling").
>>>
>>> Pavel
>>
>> Does that mean the map values will be in electrons/A**3?
>> (Apart from the zero-average offset due to no Fooo term?)
>>
>>>
>>> On 3/6/13 7:43 PM, Edward A. Berry wrote:
>>>> map scaling can be defined: sigma or volume scaled
>>>>
>>>> Maybe another dumb question, but what is volume scaling?
>>>> For 2mFo-DFc and mFo-DFc maps.
>>>>
>>>> Thanks,
>>>> Ed
>>>> _______________________________________________
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>>>> phenixbb at phenix-online.org
>>>> http://phenix-online.org/mailman/listinfo/phenixbb
>>>
>>>
>>
>
>



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