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 = 5	max. depth = 3
fold 2: acc. = 50.00	#leaves = 13	max. depth = 6
fold 3: acc. = 61.11	#leaves = 16	max. depth = 6
fold 4: acc. = 66.67	#leaves = 16	max. depth = 8
fold 5: acc. = 70.00	#leaves = 14	max. depth = 5
***1***0.5555556***0.0193680***
***2***0.5000000***0.0228860***
***3***0.6111111***0.0177170***
***4***0.6666666***0.0214570***
***5***0.7000000***0.0180690***
accuracy = 60.87	#leaves = 12.80	max depth = 5.60