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. = 66.67	#leaves = 5	max. depth = 3
fold 2: acc. = 50.00	#leaves = 10	max. depth = 6
fold 3: acc. = 44.44	#leaves = 14	max. depth = 7
fold 4: acc. = 66.67	#leaves = 12	max. depth = 6
fold 5: acc. = 65.00	#leaves = 16	max. depth = 8
***1***0.6666666***0.0196090***
***2***0.5000000***0.0204260***
***3***0.4444444***0.0244480***
***4***0.6666666***0.0185210***
***5***0.6500000***0.0121420***
accuracy = 58.70	#leaves = 11.40	max depth = 6.00