double sample() {
try {
return gd.sample();
} catch (MathException e) {
throw new RuntimeException(e);
}
}
/**
* Generate a random value from this distribution.
*
* @param rng random number generator
* @return random value from this distribution
*/
public double generate(MersenneTwisterFast rng) {
try {
return gammaDist.inverseCumulativeProbability(rng.nextDouble());
} catch (MathException e) {
System.out.println(e.getMessage());
e.printStackTrace();
System.exit(-1);
}
return -1d;
}