Java编程实现二项分布的采样或抽样实例代码

package function;
import org.apache.commons.math4.distribution.BetaDistribution;
import org.apache.commons.math4.distribution.BinomialDistribution;
import org.apache.commons.math4.special.Gamma;
public class dergamma {
	//采样1000次
	public static void main(String[] args) {
		for (int i = 0; i < 1000; i++) {
			System.out.println(binomialsampler(100,0.9));
		}
	}
	//二项分布采样
	public static double binomialsampler(int trials, double p){
		BinomialDistribution binomial=new BinomialDistribution(trials,p);
		return binomial.sample();
	}
}