Partition the Graphics Area for Tree Plots

DESCRIPTION:

Splits a graphics display into multiple screens for tree-specific functions that require more than one screen.

USAGE:

tree.screens(figs, screen.arg = 0, ...) 

OPTIONAL ARGUMENTS:

figs
a multiple figure vector like mfrow or mfcol, e.g, c(n,m), or an N by 4 matrix where N is the number of screens and each row specifies the position of a screen on the display; the first two columns specify the left and right coordinates (in the 0, 1, 0, 1 plane) for the screens, and the third and fourth columns the bottom and top coordinates.
screen.arg
screen to split up. By default it carves up the current screen, which initially is the entire display (denoted as screen 0).

VALUE:

Called without arguments this function sets up a generic partition of the graphics area for the tree-specific functions that require more than one screen.

DETAILS:

See split.screen documentation for further details.

SEE ALSO:

, , , .

EXAMPLES:

tree.screens() 
z.survey <- tree(market.survey, na.action = na.exclude) # grow the tree 
plot(z.survey) 
burl.tree(z.survey)