metrology/instruments/histogram.py
def variance(self):
        """Returns variance"""
        if self.counter.value <= 1:
            return 0.0
        return self.var.value[1] / (self.counter.value - 1)
def variance(self):
        """Returns variance"""
        if self.counter.value <= 1:
            return 0.0
        return self.var.value[1] / (self.counter.value - 1)
def variance ( self ) : if self . counter . value <= 1 : return 0.0 return self . var . value [ 1 ] / ( self . counter . value - 1 )
Returns variance
Returns variance