package com.imsl.test.example.stat;

import com.imsl.stat.*;

/**
 * <p>
 * Evaluates various cumulative distribution functions.
 * </p>
 * This example evaluates three different distributions, beta, binomial, and
 * chi-square at a quantile (a single point in the domain of the random
 * variable).
 *
 *
 * @see <a href="CdfEx1.java">Code</a>
 * @see <a href="doc-files/CdfEx1.out">Output</a>
 */
public class CdfEx1 {

    public static void main(String args[]) {
        double x, result, pin, qin;
        int k, n;
        // Beta
        x = .5;
        pin = 12.;
        qin = 12.;
        result = Cdf.beta(x, pin, qin);
        System.out.println("beta(.5, 12., 12.) is " + result);

        // binomial
        k = 3;
        n = 5;
        pin = .95;
        result = Cdf.binomial(k, n, pin);
        System.out.println("binomial(3, 5, .95) is " + result);

        // Chi
        x = .15;
        n = 2;
        result = Cdf.chi(x, n);
        System.out.println("chi(.15, 2) is " + result);
    }
}