Probability plots based on Student's t-distribution.
نویسندگان
چکیده
The validity of the normal distribution as an error model is commonly tested with a (half) normal probability plot. Real data often contain outliers. The use of t-distributions in a probability plot to model such data more realistically is described. It is shown how a suitable value of the parameter nu of the t-distribution can be determined from the data. The results suggest that even data that seem to be modeled well using a normal distribution can be better modeled using a t-distribution.
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ورودعنوان ژورنال:
- Acta crystallographica. Section A, Foundations of crystallography
دوره 65 Pt 4 شماره
صفحات -
تاریخ انتشار 2009