> source("rpart-demo.r")
Read 100 items
Read 900 items
Fraction of class 1 in test cases: 0.2155556

FITTING TREE MODEL USING FIRST 4 VARIABLES

n= 100

node), split, n, deviance, yval
      * denotes terminal node

 1) root 100 14.1100000 0.17000000
   2) V1>=1.662515 61  0.9836066 0.01639344 *
   3) V1< 1.662515 39  9.4358970 0.41025640
     6) V2< 0.68233 31  6.3870970 0.29032260
      12) V1>=-0.138265 20  3.2000000 0.20000000
        24) V2>=-0.67201 10  0.0000000 0.00000000 *
        25) V2< -0.67201 10  2.4000000 0.40000000 *
      13) V1< -0.138265 11  2.7272730 0.45454550 *
     7) V2>=0.68233 8  0.8750000 0.87500000 *

Error rate on test cases: 0.2044444

FITTING TREE MODEL USING ALL 20 VARIABLES

n= 100

node), split, n, deviance, yval
      * denotes terminal node

 1) root 100 14.110000 0.17000000
   2) V5>=1.700605 62  0.983871 0.01612903 *
   3) V5< 1.700605 38  9.263158 0.42105260
     6) V12< 1.05463 31  6.387097 0.29032260
      12) V15< -1.021405 18  1.777778 0.11111110 *
      13) V15>=-1.021405 13  3.230769 0.53846150 *
     7) V12>=1.05463 7  0.000000 1.00000000 *

Error rate on test cases: 0.2533333