def calculate_mean_standard_deviation(self): select_clause = self.add_where_clause(select([func.avg(self._table.c.value), func.std(self._table.c.value)])) result = self._connection.execute(select_clause).first() self.mean = result[0] self.standard_deviation = result[1]
def calculate_details(self): if self.valid: select_clause = self.add_where_clause(select([func.avg(self._table.c.value), func.std(self._table.c.value)])) result = self._connection.execute(select_clause).first() self.mean = result[0] self.standard_deviation = result[1] LOG.info(str(self)) return True return False