def var(self, axis=None, dtype=None, out=None, ddof=1):
"""
Compute unbiased variance of non-null values
"""
nona = remove_na(self.values)
if len(nona) < 2:
return NaN
return ndarray.var(nona, axis, dtype, out, ddof)
def var(self, axis=None, dtype=None, out=None, ddof=1):
"""
Unbiased variance of non-null values
"""
nona = remove_na(self.values)
if len(nona) < 2:
return NaN
return ndarray.var(nona, axis, dtype, out, ddof)
