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Quartiles, IQR, and Tukey whisker/outlier bounds for box plots.
Quartile method: quartiles are computed by linear interpolation between
order statistics — the “type 7” definition used by NumPy’s
percentile/quantile and R’s default quantile. Different statistics
packages use different quartile definitions that disagree by small amounts;
we fix type 7 and document it here because that disagreement is a classic
source of “my box looks slightly off” confusion.
Structs§
- Quartiles
- Five-number summary plus Tukey fences and the outliers of a sample.