[phenixbb] map scaling: sigma or volume scaled

Pavel Afonine pafonine at lbl.gov
Wed Mar 6 19:47:43 PST 2013

Hi Ed,

volume scaling - simply normalizing map coefficients by unit cell volume 
(as opposed to normalizing by standard deviations, which "sigma scaling").


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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