3.5.3.7.1 Betapdf

Definition:

bp = betapdf( x, a, b) returns the probability density function of the beta distribution with parameters a and b.

f(B:a,b)=\frac{\Gamma (a+b)}{\Gamma (a)\Gamma (b)}B^{a-1}(1-B)^{b-1} 0\leq B\leq 1;a,b>0

Parameters:

x (input, double)
The value of the beta variate. 0.0 \le x \le 1.0
a (input, double)
The first shape parameter, a, of the required beta distribution, . 0.0<a \le 10^6
b(input, double)
The second shape parameter, b, of the required beta distribution, . 0.0<b \le 10^6
bp (output, double)
The probability.