Journal of Applied Crystallography

Volume 30, Part 2 (April 1997)

fast communications

J. Appl. Cryst. (1997). 30, 203-205 [ doi:10.1107/S0021889897003907 ]

On the use of the merging R factor as a quality indicator for X-ray data

M. S. Weiss and R. Hilgenfeld

Abstract: By comparison of the accuracy and the merging R factor (R_merge) of artificially created X-ray data sets, it is demonstrated that R_merge is a poor predictor for the precision of X-ray data. The more often a given reflection is observed, the more precise the average intensity is, whereas R_merge has a tendency to be higher at higher data redundancy.

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