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Statistical Plots Package Symbol

QuantilePlot

QuantilePlot[data₁, data₂]
creates a quantile-quantile plot from the real-valued vectors data₁ and data₂.

To use QuantilePlot, you first need to load the Statistical Plots Package using Needs["StatisticalPlots`"].

QuantilePlot plots empirical quantiles of the the two vectors against each other.

QuantilePlot sorts the shorter data set, and then determines interpolated quantiles at the equivalent position in the longer list of data.

For data sets of equal length, QuantilePlot yields the equivalent of plotting the sorted lists against each other.

QuantilePlot has the same options as Graphics, with the following additions and changes:

Valid settings for the option ReferenceLineStyle are None, Automatic or a style or a list of styles.

The reference line has a slope of unity. If the points on the plot fall mostly on or near the reference line, the distributions are roughly the same.

Needs["StatisticalPlots`"]

QuantilePlot of two data sets: