def combine(self, key, values):
resume = {}
tc = TypeConverter()
#type data
values = map(tc.type,values)
resume['num-values'] = len(values)
resume['frequency'] = self._freq_count(values)
try:
resume['N/A'] = resume['frequency']['']
del resume['frequency']['']
except KeyError:
resume['N/A'] = 0
resume['type'] = tc.get_type(values)
if resume['type'] == 'int' or resume['type'] == 'float':
defined_values = filter(lambda v : v != '',values)
resume['min'] = min(defined_values)
resume['max'] = max(defined_values)
resume['sum'] = sum(defined_values)
return (key,resume)
