def main(argv = None):
if argv is None:
argv = sys.argv
if len(argv) < 3:
print 'Please specify a training set and its metadata file.'
return 1
dt = DataSet(argv[1], argv[2])
#print dt.attributes
#print dt.get_subset([1,2]).get_values('winner')
print 'entropy: ' + str(dt.get_subset().entropy())
#print dt.data['winner']
#print dt.entropy()
#print dt.unclassified
#print sys.getsizeof(dt.data['winner']['dataPoints'])
#print dt.data['winner']['dataPoints']
return 0
