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Simple Statistics 27
BoxPlot (data(), col$)
Plot a “box-whisker” plot using the letter values of the dataset data(). The color scheme
col$ has the usual meaning; for instance, “red green blue” gives a red title, green
frame, and blue box plot.
A “+” marks the median. The box stretches from left hinge to right hinge. Whiskers
extend to the extremes. Outliers inside the outer fences are plotted as stars “*” those
outside as circles “o”. The vertical scale is meaningless. Call SetDataStyle to add the
data points.
Figure 43.13: Output of the BOXPLOT program.
ManyBoxPlot (data(,), names$(), col$)
Plot stacked “box-whisker” plots using letter values of the datasets data(,). Each column
of data(,) is taken as an independent dataset, and gets its own box plot. The plot is
scaled so all data points are in the graph. Datasets need not have the same numbers of
elements; just pad short sets with missing values. Each dataset’s name is displayed
beside its plot. Pass names in the names$() array. Size(names$) must equal
Size(data,1).
The color scheme col$ has the usual meaning; for instance, “red green blue” gives a red
title, green frame, and blue box plot. If you give multiple data colors, the boxes are
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