(self, *args, **kwargs)
return self._known_aggregation('std', *args, **kwargs)
Rolling standard deviation
Rolling standard deviation
Rolling standard deviation
def std(self, *args, **kwargs):
        """ Rolling standard deviation """
        return self._known_aggregation('std', *args, **kwargs)
def std ( self , * args , * * kwargs ) : return self . _known_aggregation ( 'std' , * args , * * kwargs )