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→Comparing two sets of structure factor amplitudes or intensities

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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 | R=\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 | for amplitudes, and analogously for intensities. This R value is called R<sub>scale</sub>, as far as I know. | ||

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

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