Java Code Examples for org.apache.commons.math3.exception.util.LocalizedFormats#NAN_NOT_ALLOWED

/**
 * {@inheritDoc}
 *
 * <p>
 * <strong>Algorithm Description</strong>: if the lower bound is excluded,
 * scales the output of Random.nextDouble(), but rejects 0 values (i.e.,
 * will generate another random double if Random.nextDouble() returns 0).
 * This is necessary to provide a symmetric output interval (both
 * endpoints excluded).
 * </p>
 *
 * @throws MathIllegalArgumentException if one of the bounds is infinite or
 * {@code NaN}
 * @since 3.0
 */
public double nextUniform(double lower, double upper,
    boolean lowerInclusive) {

    if (lower >= upper) {
        throw new NumberIsTooLargeException(LocalizedFormats.LOWER_BOUND_NOT_BELOW_UPPER_BOUND,
                                            lower, upper, false);
    }

    if (Double.isInfinite(lower) || Double.isInfinite(upper)) {
        throw new MathIllegalArgumentException(LocalizedFormats.INFINITE_BOUND);
    }

    if (Double.isNaN(lower) || Double.isNaN(upper)) {
        throw new MathIllegalArgumentException(LocalizedFormats.NAN_NOT_ALLOWED);
    }

    final RandomGenerator generator = getRan();

    // ensure nextDouble() isn't 0.0
    double u = generator.nextDouble();
    while (!lowerInclusive && u <= 0.0) {
        u = generator.nextDouble();
    }

    return u * upper + (1.0 - u) * lower;
}
 

/**
 * {@inheritDoc}
 *
 * <p>
 * <strong>Algorithm Description</strong>: if the lower bound is excluded,
 * scales the output of Random.nextDouble(), but rejects 0 values (i.e.,
 * will generate another random double if Random.nextDouble() returns 0).
 * This is necessary to provide a symmetric output interval (both
 * endpoints excluded).
 * </p>
 *
 * @throws MathIllegalArgumentException if one of the bounds is infinite or
 * {@code NaN}
 * @since 3.0
 */
public double nextUniform(double lower, double upper,
    boolean lowerInclusive) {

    if (lower >= upper) {
        throw new NumberIsTooLargeException(LocalizedFormats.LOWER_BOUND_NOT_BELOW_UPPER_BOUND,
                                            lower, upper, false);
    }

    if (Double.isInfinite(lower) || Double.isInfinite(upper)) {
        throw new MathIllegalArgumentException(LocalizedFormats.INFINITE_BOUND);
    }

    if (Double.isNaN(lower) || Double.isNaN(upper)) {
        throw new MathIllegalArgumentException(LocalizedFormats.NAN_NOT_ALLOWED);
    }

    final RandomGenerator generator = getRan();

    // ensure nextDouble() isn't 0.0
    double u = generator.nextDouble();
    while (!lowerInclusive && u <= 0.0) {
        u = generator.nextDouble();
    }

    return u * upper + (1.0 - u) * lower;
}
 

/**
 * Construct the exception.
 */
public NotANumberException() {
    super(LocalizedFormats.NAN_NOT_ALLOWED, Double.valueOf(Double.NaN));
}
 

/**
 * Construct the exception.
 */
public NotANumberException() {
    super(LocalizedFormats.NAN_NOT_ALLOWED, Double.NaN);
}
 

/**
 * Construct the exception.
 */
public NotANumberException() {
    super(LocalizedFormats.NAN_NOT_ALLOWED, Double.valueOf(Double.NaN));
}
 

/**
 * Construct the exception.
 */
public NotANumberException() {
    super(LocalizedFormats.NAN_NOT_ALLOWED, Double.NaN);
}
 

/**
 * Construct the exception.
 */
public NotANumberException() {
    super(LocalizedFormats.NAN_NOT_ALLOWED, Double.valueOf(Double.NaN));
}
 

/**
 * Construct the exception.
 */
public NotANumberException() {
    super(LocalizedFormats.NAN_NOT_ALLOWED, Double.valueOf(Double.NaN));
}