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Probabilities.BetaCDF Method (double, double, double)
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Beta cumulative distribution function (CDF).

Syntax
C#
Visual Basic
public static double BetaCDF(double x, double a, double b);
Parameters
Parameters 
Description 
double x 
Function domain, real positive value on closed interval [0,1]. 
double a 
Shape parameter, real positive value. 
double 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].

Remarks

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

 

where B(a,b) is Beta function.

See Also
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