classification returns irrelevant results in else conditions

[serengil]

For the configuration

config = {
        "algorithm": "ID3",
        # "enableRandomForest": True,
        # "num_of_trees": 3,
    }

I am getting the following tree for car.data dataset.

def findDecision(obj): #obj[0]: buying, obj[1]: maint, obj[2]: doors, obj[3]: persons, obj[4]: lug_boot, obj[5]: safety
	# {"feature": "safety", "instances": 1728, "metric_value": 1.2057, "depth": 1}
	if obj[5] == 'low':
		return 'unacc'
	elif obj[5] == 'med':
		# {"feature": "persons", "instances": 576, "metric_value": 1.2152, "depth": 2}
		if obj[3] == '2':
			return 'unacc'
		elif obj[3] == '4':
			# {"feature": "buying", "instances": 192, "metric_value": 1.3543, "depth": 3}
			if obj[0] == 'vhigh':
				# {"feature": "maint", "instances": 48, "metric_value": 0.8113, "depth": 4}
				if obj[1] == 'vhigh':
					return 'unacc'
				elif obj[1] == 'high':
					return 'unacc'
				elif obj[1] == 'med':
					# {"feature": "lug_boot", "instances": 12, "metric_value": 1.0, "depth": 5}
					if obj[4] == 'small':
						return 'unacc'
					elif obj[4] == 'med':
						return 'unacc'
					elif obj[4] == 'big':
						return 'acc'
					else: return '4'
				elif obj[1] == 'low':
					# {"feature": "lug_boot", "instances": 12, "metric_value": 1.0, "depth": 5}
					if obj[4] == 'small':
						return 'unacc'
					elif obj[4] == 'med':
						return 'unacc'
					elif obj[4] == 'big':
						return 'acc'
					else: return '4'
				else: return '6'

As seen, results should be nominal but in else conditions it is returning numbers somehow.

[serengil]

Resolved with PR - #43