Remapping class numbers:
	0 To 1
	1 To 2
	2 To 3
Pruned decision tree written to csv/pittsburg-bridges-SPAN.csv.dt.
Unpruned decision tree written to csv/pittsburg-bridges-SPAN.csv.dt.unpruned.
fold 1: acc. = 55.56	#leaves = 6	max. depth = 4
fold 2: acc. = 61.11	#leaves = 16	max. depth = 8
fold 3: acc. = 38.89	#leaves = 11	max. depth = 6
fold 4: acc. = 50.00	#leaves = 14	max. depth = 5
fold 5: acc. = 50.00	#leaves = 14	max. depth = 6
***1***0.5555556***0.0188380***
***2***0.6111111***0.0161160***
***3***0.3888889***0.0181530***
***4***0.5000000***0.0154600***
***5***0.5000000***0.0157790***
accuracy = 51.09	#leaves = 12.20	max depth = 5.80