2.4.2: workaround for NumPy 1.8.0 new mean() behavior
Workaround for NumPy 1.8.0 new mean() behavior, which made uncertainties fail when calculating the mean of an array with numbers with uncertainties.
Reference: numpy/numpy#4063
Workaround for NumPy 1.8.0 new mean() behavior, which made uncertainties fail when calculating the mean of an array with numbers with uncertainties.
Reference: numpy/numpy#4063