barak.stats.poisson_min_max_limits¶

barak.stats.poisson_min_max_limits(conf, nevents)[source]¶

Calculate the minimum and maximum mean Poisson value mu consistent with seeing nevents at a given confidence level.

conf: float

95%, 90%, 68.3% or similar.

nevents: int

The number of events observed.

Returns :	mulo, mhi : floats Mean number of events such that >= observed number of events nevents occurs in fewer than conf% of cases (mulo), and mean number of events such that <= nevents occurs in fewer than conf% of cases (muhi)