text.rpart {rpart}  R Documentation 
Labels the current plot of the tree dendrogram with text.
## S3 method for class 'rpart': text(x, splits=TRUE, label="yval", FUN=text, all=FALSE, pretty=NULL, digits=getOption("digits")  3, use.n=FALSE, fancy=FALSE, fwidth=0.8, fheight=0.8, ...)
x 
fitted model object of class rpart . This is assumed to be the result
of some function that produces an object with the same named
components as that returned by the rpart function.

splits 
logical flag. If TRUE (default), then the splits in the tree are
labeled with the criterion for the split.

label 
a column name of x$frame ; values of this
will label the nodes. For the "class" method,
label="yval" results in the factor levels
being used, "yprob" results in the probability of the winning factor
level being used, and ‘specific yval level’ results in the probability
of that factor level.

FUN 
the name of a labeling function, e.g. text .

all 
Logical. If TRUE , all nodes are labeled, otherwise just
terminal nodes.

pretty 
an integer denoting the extent to which factor levels in split labels
will be abbreviated. A value of (0) signifies no abbreviation. A
NULL , the default, signifies using elements of letters to represent
the different factor levels.

digits 
number of significant digits to include in numerical labels. 
use.n 
Logical. If TRUE , adds to label
(#events level1/ #events level2/etc. for class ,
n for anova , and #events/n for poisson and exp ).

fancy 
Logical. If TRUE , nodes are represented by ellipses (interior nodes)
and rectangles (leaves) and labeled by yval . The edges connecting the
nodes are labeled by left and right splits.

fwidth 
Relates to option fancy and the width of the ellipses and rectangles.
If fwidth < 1 then it is a scaling factor (default = 0.8). If
fwidth > 1 then it representes the number of character widths
(for current graphical device) to use.

fheight 
Relates to option fancy and the height of the ellipses and rectangles.
If fheight <1 then it is a scaling factor (default = 0.8). If
fheight > 1 then it represents the number of character heights
(for current graphical device) to use.

... 
Graphical parameters may also be supplied as arguments to this
function (see par ). As labels often extend outside the plot
region it can be helpful to specify xpd = TRUE .

the current plot of a tree dendrogram is labeled.
text
, plot.rpart
, rpart
,
post.rpart
, abbreviate
freen.tr < rpart(y ~ ., freeny) plot(freen.tr) text(freen.tr, use.n=TRUE, all=TRUE)