Figure 3
Example demonstrating the possibility of negative CC1/2 when rejecting reflections with negative intensities from a data set. The plots show [epsilon]1 versus [epsilon]2 for simulated data having Gaussian noise and no signal ([tau] = 0). (a) 1000 unique reflections, each represented by two observations; no rejections. The correlation of [epsilon]1 and [epsilon]2 is near zero. (b) From the 1000 unique reflections, those with negative intensity ([epsilon]1 + [epsilon]2 < 0) were rejected. The resulting correlation between [epsilon]1 and [epsilon]2 is about -0.47. (c) From the 1000 unique reflections, those with negative [epsilon]1 or negative [epsilon]2 were rejected, also resulting in positive (merged) intensity. The resulting correlation between [epsilon]1 and [epsilon]2 is near zero.  [article HTML]