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Statistical and Numerical Computing

  1. DR Boris Iglewicz

Published Online: 15 SEP 2006

DOI: 10.1002/9780470057339.vab030

Encyclopedia of Environmetrics

Encyclopedia of Environmetrics

How to Cite

Iglewicz, B. 2006. Boxplot. Encyclopedia of Environmetrics. 1.

Author Information

  1. Temple University, PA, USA

Publication History

  1. Published Online: 15 SEP 2006


Tukey introduced several basic exploratory data analytic tools that have since found great popularity and extensive usage. These tools include the stem-and-leaf display, the five-number summary, and a graphical univariate data summary called a box-and-whisker plot, which is now typically called a boxplot. The five-number summary is the basis of a boxplot. It consists of the median, the lower and upper quartiles, and the smallest and largest observation.