text.tree {tree} | R Documentation |
Add text to a tree plot.
text.tree(x, splits = TRUE, label = "yval", all = FALSE, pretty = NULL, digits = getOption("digits") - 3, ...)
x |
an object of class "tree" |
splits |
logical. If TRUE the splits are labelled |
label |
The name of column in the frame component of
x , to be used to label the nodes. Can be NULL to
suppress node-labelling |
all |
logical. By default, only the leaves are labelled, but if true interior nodes are also labelled. |
pretty |
the manipulation used for split labels involving attributes. See Details. |
digits |
significant digits for numerical labels. |
... |
graphical parameters such as cex and font . |
If pretty = 0
then the level names of a factor split attributes
are used unchanged. If pretty = NULL
, the levels are presented
by a
, b
, .... If pretty
is a positive integer,
abbreviate
is applied to the labels with that value
for its argument minlength
.
If the lettering is vertical (par srt = 90
) and adj
is
not supplied it is adjusted appropriately.
None.
B. D. Ripley