Example usage for org.apache.commons.math.special Beta regularizedBeta

Introduction

In this page you can find the example usage for org.apache.commons.math.special Beta regularizedBeta.

Prototype

public static double regularizedBeta(double x, final double a, final double b, double epsilon,
        int maxIterations) throws MathException 

Source Link

Document

Returns the regularized beta function I(x, a, b).

Usage

From source file:com.opengamma.analytics.math.function.special.IncompleteBetaFunction.java

/**
 * @param x x/*from ww  w . j  a  v  a2s . c om*/
 * @return the value of the function
 * @throws IllegalArgumentException If $x < 0$ or $x > 1$
 */
@Override
public Double evaluate(final Double x) {
    Validate.isTrue(x >= 0 && x <= 1, "x must be in the range 0 to 1");
    try {
        return Beta.regularizedBeta(x, _a, _b, _eps, _maxIter);
    } catch (final org.apache.commons.math.MathException e) {
        throw new MathException(e);
    }
}

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