Probabilities.BetaCDF Function

Beta cumulative distribution function (CDF).

Pascal

function BetaCDF(x: double; a: double; b: double): double; overload;

Parameters	Description
x	Function domain, real positive value on closed interval [0,1].
a	Shape parameter, real positive value.
b	Shape parameter, real positive value.

Returns

the beta cumulative distribution function (CDF), which the probability that a single observation from a beta distribution with parameters a and b will fall in the interval [0,x].

Description

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

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

where B(a,b) is Beta function.