A statistic for local intensity differences: robustness to anisotropy and pseudo-centering and utility for detecting twinning.

@article{Padilla2003ASF,
  title={A statistic for local intensity differences: robustness to anisotropy and pseudo-centering and utility for detecting twinning.},
  author={Jennifer E Padilla and Todd O. Yeates},
  journal={Acta crystallographica. Section D, Biological crystallography},
  year={2003},
  volume={59 Pt 7},
  pages={1124-30}
}
A new approach to analyzing macromolecular single-crystal X-ray diffraction intensity statistics is presented. Instead of considering reflections in resolution shells, differences between local pairs of reflection intensities are taken and normalized separately. When the two reflections to be compared (having intensities I(1) and I(2), respectively) are chosen appropriately, the behavior of the parameter L = (I(1) - I(2))/(I(1) + I(2)) is insensitive to phenomena that tend to confound… CONTINUE READING

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