normal_interval

coffea.hist.normal_interval(pw, tw, pw2, tw2, coverage=0.6826894921370859)

Compute errors based on the expansion of pass/(pass + fail), possibly weighted

Parameters:

• pw (numpy.ndarray) – Numerator, or number of (weighted) successes, vectorized

• tw (numpy.ndarray) – Denominator or number of (weighted) trials, vectorized

• pw2 (numpy.ndarray) – Numerator sum of weights squared, vectorized

• tw2 (numpy.ndarray) – Denominator sum of weights squared, vectorized

• coverage (float, optional) – Central coverage interval, defaults to 68%

• https (c.f.)