where <math>\langle I_{hkl}\rangle</math> is the average of symmetry- (or Friedel-) related observations of a unique reflection.
−
where <math>\langle I_{hkl}\rangle</math> is the average of symmetry- (or Friedel-) related observations of a unique reflection
+
+
It can be shown that this formula results in higher R-factors when the redundancy is higher. In other words, low-redundancy datasets appear better than high-redundancy ones, which obviously violates the intention of having an indicator of data quality!
* Redundancy-independant version of the above:
* Redundancy-independant version of the above:
<math>
<math>
Line 16:
Line 17:
</math>
</math>
<br>
<br>
−
<br>
+
which unfortunately results in higher (but more realistic) numerical values than R<sub>sym</sub> / R<sub>merge</sub>
* measuring quality of averaged intensities/amplitudes:
* measuring quality of averaged intensities/amplitudes: