Ploticus data display engine Copyright Steve Grubb


Ploticus Gallery - Rangebars

This page contains a series of rangebar examples illustrating the available varieties and options.

These examples all use ploticus's proc rangebar.


Example 1

rangebar1

Simple example. proc rangebar is invoked once for every bar that is to be displayed. The percentiles and medians are calcuated and displayed, and the "N=" summary is automatically provided.


Example 2

rangebar2

These boxplots follow the Tukey specifications for outlier display.


Example 3

ranges

Another example, where pairs of rangebars are done. The pairs are positioned using category scaling, with proc catslide providing a small offset for each bar within a pair.


Example 3a

mouse

In this example, proc rangebar computes means and standard deviations. The data set includes dozens of cases, and for each case there are perhaps twenty rows of data. Proc processdata is used to step through the data set. A plot is generated for each sex of each mouse strain; proc catslide is used to slightly offset the red bars leftward, and blue bars rightward.


Example 4

timely

This is an example of horizontal rangebars. These work nicely for displays looking at time intervals. In this example categories are used for the centers, and a #loop structure is used to display a bar for each center.


Example 5

errbar3

Proc rangebar may also be used to calculate mean and standard deviation, and render error bars.


Example 6

errbar4

An example of horizontal error bars.


Example 7

rangebar3

Here, outliers are displayed using line segments rather than symbols.


Example 8

distrib

Distribution of scores example.