Displays the cp
table for fitted rpart
object.
1 
x 
fitted model object of class 
digits 
the number of digits of numbers to print. 
Prints a table of optimal prunings based on a complexity parameter.
summary.rpart
, rpart.object
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18  z.auto < rpart(Mileage ~ Weight, car.test.frame)
printcp(z.auto)
## Not run:
Regression tree:
rpart(formula = Mileage ~ Weight, data = car.test.frame)
Variables actually used in tree construction:
[1] Weight
Root node error: 1354.6/60 = 22.576
CP nsplit rel error xerror xstd
1 0.595349 0 1.00000 1.03436 0.178526
2 0.134528 1 0.40465 0.60508 0.105217
3 0.012828 2 0.27012 0.45153 0.083330
4 0.010000 3 0.25729 0.44826 0.076998
## End(Not run)

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