R-factors: Difference between revisions

52 bytes removed ,  14 October 2014
R_scale
(R_scale)
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The following is symmetric, and suitable for comparing two data sets, or two model amplitudes:
The following is symmetric, and suitable for comparing two data sets, or two model amplitudes:
  <math>
  <math>
  R=\frac{\sum_{hkl}\vert F_{hkl,i}-F_{hkl,j}\vert}{0.5\sum_{hkl} F_{hkl,i}+F_{hkl,j}}
  R_{scale}=\frac{\sum_{hkl}\vert F_{hkl,i}-F_{hkl,j}\vert}{0.5\sum_{hkl} F_{hkl,i}+F_{hkl,j}}
  </math>
  </math>
for amplitudes, and analogously for intensities. This R value is called R<sub>scale</sub>, as far as I know.
for amplitudes, and analogously for intensities.


=== Model quality indicators ===
=== Model quality indicators ===
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