Box & Whisker Charts

Box & Whisker General Features

  • Box & whisker chart displays rank statistics, and has the form of a box or notched box that spans the distance between the two quartiles surrounding the median.
Box Types and Whisker Presentation Options
Box Type Options
  • Notched box
  • Regular box

In the notched box, the half width (HW) of the notch is calculated using the method of Mcgill et. al. (1978):

    McGill, R. Tukey, J.W., and Larsen, W.A. (1978). Variations of Box Plots, The American Statistician, v. 32, p. 12-16.

Whisker Presentation

The following options are available for whisker presentation:

  • Whiskers are extended to extreme data points
  • Q1 - 1.5 * IQR, Q3 + 1.5 * IQR
  • Q1 - 1.5 * IQR, Q3 + 1.5 * IQR" (& Outliers)
  • 10th Percentile, 90th Percentile
  • 10th Percentile, 90th Percentile (& Outliers)
  • "th5 Percentile, 95th Percentile
  • 5 Percentile, 95th Percentile (& Outliers)