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 = 2	max. depth = 1
fold 2: acc. = 66.67	#leaves = 13	max. depth = 5
fold 3: acc. = 83.33	#leaves = 13	max. depth = 6
fold 4: acc. = 61.11	#leaves = 15	max. depth = 6
fold 5: acc. = 60.00	#leaves = 16	max. depth = 6
***1***0.5555556***0.0177900***
***2***0.6666666***0.0145730***
***3***0.8333334***0.0203850***
***4***0.6111111***0.0171470***
***5***0.6000000***0.0143540***
accuracy = 65.22	#leaves = 11.80	max depth = 4.80