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Figure 6
Error in calculation of scale factors sY and sZ for rotation about the κ axis as a function of the number of data used for the ellipse-fit calculation. Points were recorded at 5° intervals over [0°, 240°] for a total of 49 points. Scale factors were calculated for subsets of these points; for a six-point subset, three points were chosen randomly from evenly distributed ranges on the rotational path, and the following three were points located exactly 180° away. If a randomly selected point had no pair (i.e. any point on the interval [60°, 180°]), another point with no pair was selected as well. This random selection and scale-factor calculation was repeated 100 times for each subset. The means of resulting scale factors are plotted together with the standard deviations as a function of the number of points in the subsets.

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ISSN: 2053-2733
Volume 67| Part 3| May 2011| Pages 219-228
https://doi.org/10.1107/S0108767311004831
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