Whisker
A boxplot whisker is a line extending from a box toward the most extreme included observation on the corresponding side of a distribution.
Statistics Slam Dunk
A whisker is a line extending from a boxplot box toward the non-outlying lower or upper observations.
- How it is used
- Uses whiskers to compare distributions and reveal non-outlying spread in NBA performance data.
- How deep it goes
- Defines whiskers, relates them to quartiles and the IQR, and distinguishes outliers, without deriving the plotting algorithm.
- Examples
- Illustrates whiskers with NBA wins, points scored, points allowed, career win shares, birthplace, college attendance, and draft year.
- What you can do after
- Apply whiskers via ggplot2 to interpret distribution, spread, medians, means, and outliers in grouped NBA data.
D3.js in Action, Third Edition
A whisker is a line extending from a box-plot quartile toward a distribution extreme such as the minimum or maximum.
- How it is used
- Uses whiskers to show the spread from box-plot quartiles toward minimum and maximum values.
- How deep it goes
- Explains whisker meaning and demonstrates SVG line attributes, while deferring statistical treatments beyond minimum, maximum, and quartiles.
- Examples
- Uses gender-grouped salary distributions, SVG lines, and optional salary-point circles as concrete examples.
- What you can do after
- Builds whiskers in D3 by appending SVG lines and assigning scaled quartile and extreme positions.
Related concepts
- box-and-whisker plotpart of · A box-and-whisker plot is a statistical graphic that summarizes a numerical distribution using quartiles, a median, and whiskers or markers indicating spread and potential outliers.
- linekind of · A line is a graphical element or mark defined by endpoints that represents a straight segment or connects plotted data positions.
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