Remapping class numbers: 0 To 2 Pruned decision tree written to data/csv/balloons.csv.dt. Unpruned decision tree written to data/csv/balloons.csv.dt.unpruned. fold 1: acc. = 33.33 #leaves = 2 max. depth = 1 fold 2: acc. = 33.33 #leaves = 4 max. depth = 3 fold 3: acc. = 33.33 #leaves = 2 max. depth = 1 fold 4: acc. = 100.00 #leaves = 4 max. depth = 3 fold 5: acc. = 75.00 #leaves = 4 max. depth = 3 accuracy = 56.25 #leaves = 3.20 max depth = 2.20