(self)
return self.get_snapshot().get_stddev()
get stddev from snapshot of internal histogram
get stddev from snapshot of internal histogram
get stddev from snapshot of internal histogram
def get_stddev(self):
        "get stddev from snapshot of internal histogram"
        return self.get_snapshot().get_stddev()
def get_stddev ( self ) : return self . get_snapshot ( ) . get_stddev ( )