print
of class
tree
.
print.tree(x, pretty = F, spaces = 2, digits = .Options$digits-3, ...)
tree
.
This is assumed to be the result of some function that produces
an object with the same named
components as that returned by the
tree
function.
NULL
denoting the extent to which factor levels in split
labels will be abbreviated.
a value of
FALSE
signifies no abbreviation.
A
NULL
signifies using elements of
letters
to represent
the different factor levels.
x$frame
.
Indentation is used to convey the tree topology.
Information for each node includes the
node number, split, size, deviance, and fitted value.
This function also prints degenerate trees of class
singlenode
.
This function is a method for the generic function for class tree. It can be invoked by calling for an object x of the appropriate class, or directly by calling regardless of the class of the object.
z.auto <- tree(Mileage ~ Weight, car.test.frame) z.auto # Gives the following output: node), split, n, deviance, yval * denotes terminal node 1) root 60 1355.000 24.58 2) Weight<2567.5 15 186.900 30.93 4) Weight<2280 6 16.000 34.00 * 5) Weight>2280 9 76.890 28.89 * 3) Weight>2567.5 45 361.200 22.47 6) Weight<3087.5 23 117.700 24.43 12) Weight<2747.5 8 39.880 25.62 * 13) Weight>2747.5 15 60.400 23.80 26) Weight<2882.5 6 19.330 23.33 * 27) Weight>2882.5 9 38.890 24.11 * 7) Weight>3087.5 22 61.320 20.41 14) Weight<3637.5 16 32.940 21.06 28) Weight<3322.5 10 16.500 20.50 56) Weight<3197.5 5 11.200 20.60 * 57) Weight>3197.5 5 5.200 20.40 * 29) Weight>3322.5 6 8.000 22.00 * 15) Weight>3637.5 6 3.333 18.67 *