Probabilities.BetaCDFInv Function

Beta distribution point percent function (PPF).

Pascal

function BetaCDFInv(p: double; a: double; b: double): double; overload;

Parameters	Description
p	Probability, real positive value on closed interval [0,1].
a	Shape parameter, real positive value.
b	Shape parameter, real positive value.

the Beta distribution point percent function (PPF) for given parameters a and b.

function BetaCDF(x, a, b: single): single; overload;

The inverse beta cumulative distribution function is defined by the following equation:

where B(a,b) is Beta function.