Returns the deviance at each node of a given object or the total tree
deviance.
USAGE:
deviance.tree(obj, detail = F)
REQUIRED ARGUMENTS:
obj:
fitted model object of class 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.
OPTIONAL ARGUMENTS:
detail:
logical flag: if TRUE, returns the deviance at each node; if FALSE (default),
returns the total tree deviance.
VALUE:
The deviance at each node of obj or the total tree deviance.
DETAILS:
This function is a method for the generic function
deviance
for class
"tree".
It can be invoked by calling
deviance
for an object of the appropriate class, or directly by calling
deviance.tree
regardless of the class of the object.