scipy.special.bdtri¶
-
scipy.special.
bdtri
(k, n, y) = <ufunc 'bdtri'>¶ Inverse function to
bdtr
with respect to p.Finds the event probability p such that the sum of the terms 0 through k of the binomial probability density is equal to the given cumulative probability y.
Parameters: - k : array_like
Number of successes (float).
- n : array_like
Number of events (float)
- y : array_like
Cumulative probability (probability of k or fewer successes in n events).
Returns: - p : ndarray
The event probability such that bdtr(k, n, p) = y.
See also
Notes
The computation is carried out using the inverse beta integral function and the relation,:
1 - p = betaincinv(n - k, k + 1, y).
Wrapper for the Cephes [1] routine
bdtri
.References
[1] (1, 2) Cephes Mathematical Functions Library, http://www.netlib.org/cephes/