Remapping class numbers:
	0 To 1
	1 To 2
	2 To 3
Pruned decision tree written to data/csv/pittsburg-bridges-MATERIAL.csv.dt.
Unpruned decision tree written to data/csv/pittsburg-bridges-MATERIAL.csv.dt.unpruned.
fold 1: acc. = 90.48	#leaves = 2	max. depth = 1
fold 2: acc. = 71.43	#leaves = 7	max. depth = 4
fold 3: acc. = 95.24	#leaves = 8	max. depth = 4
fold 4: acc. = 80.95	#leaves = 9	max. depth = 5
fold 5: acc. = 90.91	#leaves = 10	max. depth = 5
accuracy = 85.85	#leaves = 7.20	max depth = 3.80