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. = 72.22	#leaves = 3	max. depth = 2
fold 2: acc. = 50.00	#leaves = 13	max. depth = 7
fold 3: acc. = 61.11	#leaves = 17	max. depth = 8
fold 4: acc. = 50.00	#leaves = 13	max. depth = 7
fold 5: acc. = 50.00	#leaves = 11	max. depth = 6
***1***0.7222222***0.0181120***
***2***0.5000000***0.0158940***
***3***0.6111111***0.0237230***
***4***0.5000000***0.0243320***
***5***0.5000000***0.0196300***
accuracy = 56.52	#leaves = 11.40	max depth = 6.00