scipy.stats.mstats.betai¶
- scipy.stats.mstats.betai(a, b, x)[source]¶
Returns the incomplete beta function.
I_x(a,b) = 1/B(a,b)*(Integral(0,x) of t^(a-1)(1-t)^(b-1) dt)
where a,b>0 and B(a,b) = G(a)*G(b)/(G(a+b)) where G(a) is the gamma function of a.
The standard broadcasting rules apply to a, b, and x.
Parameters: a : array_like or float > 0
b : array_like or float > 0
x : array_like or float
x will be clipped to be no greater than 1.0 .
Returns: betai : ndarray
Incomplete beta function.