BGRAPH procedure

Plots a tree (R.W. Payne).

Option

SIZE = scalar

Provides a multiplier by which to scale the node labels

Parameters

TREE = trees

Trees to be plotted

XTERMINAL = scalars or variates

X-spacing (scalar) or x-values (variate) for the terminal nodes of each tree; default 2

Description

BGRAPH plots a tree. The tree to be plotted is specified by the TREE parameter. BGRAPH arranges the nodes with the root at the top and the terminal nodes at the bottom of the plot. The terminal nodes are arranged automatically across the screen, but the x-coordinates can be specified explicitly using the XTERMINAL parameter. The SIZE option allows the size of the node labels to be adjusted by a scaling factor (default 1).

Option: SIZE.

Parameters: TREE, XTERMINAL.

Method

BGRAPH uses the standard tree functions to parse the tree and thus decide where to plot each node.