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![[Figure 1]](oc5049fig1mag.jpg)
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Figure 1
(a) The mean value of the weighted residuals is not at zero but at a slightly larger value of 0.0521. This appears to be a small value; however, plot (b) shows the histogram of the significance of the deviation from zero for 8424 analysed data sets. (c) The mean value of the weighted residuals is strongly correlated with the median of the weighted residuals. The 95% confidence intervals for the fit parameters are given by [−0.012, −0.011] for the constant and [1.003, 1.015] for the slope. (d) The shift of the residual distribution as a whole can also be described by the fraction of positive excess residuals. When this fraction is multiplied by 100 it gives the percentage of positive excess residuals. When the distribution of residuals for an individual data set is well centred at zero, the percentage of positive excess residuals is close to zero. The fitted parameters are given in the plot with the respective estimated standard deviations. The 95% confidence intervals for the fitted parameters are given by [−0.008, −0.007] for the constant and [0.850, 0.863] for the slope. Plots (c) and (d) together may indicate data-processing or -reduction problems. For details, see text. |
![[Figure 1]](oc5049fig1.jpg)
 | JOURNAL OF APPLIED CRYSTALLOGRAPHY |
ISSN: 1600-5767
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