Java Code Examples for org.apache.commons.math.exception.util.LocalizedFormats#OUT_OF_BOUNDS_QUANTILE_VALUE

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Example 1
Source File: Percentile.java    From astor with GNU General Public License v2.0 4 votes vote down vote up 
/**
 * Returns an estimate of the <code>p</code>th percentile of the values
 * in the <code>values</code> array, starting with the element in (0-based)
 * position <code>begin</code> in the array and including <code>length</code>
 * values.
 * <p>
 * Calls to this method do not modify the internal <code>quantile</code>
 * state of this statistic.</p>
 * <p>
 * <ul>
 * <li>Returns <code>Double.NaN</code> if <code>length = 0</code></li>
 * <li>Returns (for any value of <code>p</code>) <code>values[begin]</code>
 *  if <code>length = 1 </code></li>
 * <li>Throws <code>IllegalArgumentException</code> if <code>values</code>
 *  is null , <code>begin</code> or <code>length</code> is invalid, or
 * <code>p</code> is not a valid quantile value (p must be greater than 0
 * and less than or equal to 100)</li>
 * </ul></p>
 * <p>
 * See {@link Percentile} for a description of the percentile estimation
 * algorithm used.</p>
 *
 * @param values array of input values
 * @param p  the percentile to compute
 * @param begin  the first (0-based) element to include in the computation
 * @param length  the number of array elements to include
 * @return  the percentile value
 * @throws IllegalArgumentException if the parameters are not valid or the
 * input array is null
 */
public double evaluate(final double[] values, final int begin,
        final int length, final double p) {

    test(values, begin, length);

    if ((p > 100) || (p <= 0)) {
        throw new OutOfRangeException(LocalizedFormats.OUT_OF_BOUNDS_QUANTILE_VALUE, p, 0, 100);
    }
    if (length == 0) {
        return Double.NaN;
    }
    if (length == 1) {
        return values[begin]; // always return single value for n = 1
    }
    double n = length;
    double pos = p * (n + 1) / 100;
    double fpos = FastMath.floor(pos);
    int intPos = (int) fpos;
    double dif = pos - fpos;
    double[] work;
    int[] pivotsHeap;
    if (values == getDataRef()) {
        work = getDataRef();
        pivotsHeap = cachedPivots;
    } else {
        work = new double[length];
        System.arraycopy(values, begin, work, 0, length);
        pivotsHeap = new int[(0x1 << MAX_CACHED_LEVELS) - 1];
        Arrays.fill(pivotsHeap, -1);
    }

    if (pos < 1) {
        return select(work, pivotsHeap, 0);
    }
    if (pos >= n) {
        return select(work, pivotsHeap, length - 1);
    }
    double lower = select(work, pivotsHeap, intPos - 1);
    double upper = select(work, pivotsHeap, intPos);
    return lower + dif * (upper - lower);
}
Example 2
Source File: Percentile.java    From astor with GNU General Public License v2.0 4 votes vote down vote up 
/**
 * Returns an estimate of the <code>p</code>th percentile of the values
 * in the <code>values</code> array, starting with the element in (0-based)
 * position <code>begin</code> in the array and including <code>length</code>
 * values.
 * <p>
 * Calls to this method do not modify the internal <code>quantile</code>
 * state of this statistic.</p>
 * <p>
 * <ul>
 * <li>Returns <code>Double.NaN</code> if <code>length = 0</code></li>
 * <li>Returns (for any value of <code>p</code>) <code>values[begin]</code>
 *  if <code>length = 1 </code></li>
 * <li>Throws <code>IllegalArgumentException</code> if <code>values</code>
 *  is null , <code>begin</code> or <code>length</code> is invalid, or
 * <code>p</code> is not a valid quantile value (p must be greater than 0
 * and less than or equal to 100)</li>
 * </ul></p>
 * <p>
 * See {@link Percentile} for a description of the percentile estimation
 * algorithm used.</p>
 *
 * @param values array of input values
 * @param p  the percentile to compute
 * @param begin  the first (0-based) element to include in the computation
 * @param length  the number of array elements to include
 * @return  the percentile value
 * @throws IllegalArgumentException if the parameters are not valid or the
 * input array is null
 */
public double evaluate(final double[] values, final int begin,
        final int length, final double p) {

    test(values, begin, length);

    if ((p > 100) || (p <= 0)) {
        throw new OutOfRangeException(LocalizedFormats.OUT_OF_BOUNDS_QUANTILE_VALUE, p, 0, 100);
    }
    if (length == 0) {
        return Double.NaN;
    }
    if (length == 1) {
        return values[begin]; // always return single value for n = 1
    }
    double n = length;
    double pos = p * (n + 1) / 100;
    double fpos = FastMath.floor(pos);
    int intPos = (int) fpos;
    double dif = pos - fpos;
    double[] work;
    int[] pivotsHeap;
    if (values == getDataRef()) {
        work = getDataRef();
        pivotsHeap = cachedPivots;
    } else {
        work = new double[length];
        System.arraycopy(values, begin, work, 0, length);
        pivotsHeap = new int[(0x1 << MAX_CACHED_LEVELS) - 1];
        Arrays.fill(pivotsHeap, -1);
    }

    if (pos < 1) {
        return select(work, pivotsHeap, 0);
    }
    if (pos >= n) {
        return select(work, pivotsHeap, length - 1);
    }
    double lower = select(work, pivotsHeap, intPos - 1);
    double upper = select(work, pivotsHeap, intPos);
    return lower + dif * (upper - lower);
}
Example 3
Source File: Percentile.java    From astor with GNU General Public License v2.0 4 votes vote down vote up 
/**
 * Returns an estimate of the <code>p</code>th percentile of the values
 * in the <code>values</code> array, starting with the element in (0-based)
 * position <code>begin</code> in the array and including <code>length</code>
 * values.
 * <p>
 * Calls to this method do not modify the internal <code>quantile</code>
 * state of this statistic.</p>
 * <p>
 * <ul>
 * <li>Returns <code>Double.NaN</code> if <code>length = 0</code></li>
 * <li>Returns (for any value of <code>p</code>) <code>values[begin]</code>
 *  if <code>length = 1 </code></li>
 * <li>Throws <code>IllegalArgumentException</code> if <code>values</code>
 *  is null , <code>begin</code> or <code>length</code> is invalid, or
 * <code>p</code> is not a valid quantile value (p must be greater than 0
 * and less than or equal to 100)</li>
 * </ul></p>
 * <p>
 * See {@link Percentile} for a description of the percentile estimation
 * algorithm used.</p>
 *
 * @param values array of input values
 * @param p  the percentile to compute
 * @param begin  the first (0-based) element to include in the computation
 * @param length  the number of array elements to include
 * @return  the percentile value
 * @throws IllegalArgumentException if the parameters are not valid or the
 * input array is null
 */
public double evaluate(final double[] values, final int begin,
        final int length, final double p) {

    test(values, begin, length);

    if ((p > 100) || (p <= 0)) {
        throw new OutOfRangeException(LocalizedFormats.OUT_OF_BOUNDS_QUANTILE_VALUE, p, 0, 100);
    }
    if (length == 0) {
        return Double.NaN;
    }
    if (length == 1) {
        return values[begin]; // always return single value for n = 1
    }
    double n = length;
    double pos = p * (n + 1) / 100;
    double fpos = FastMath.floor(pos);
    int intPos = (int) fpos;
    double dif = pos - fpos;
    double[] work;
    int[] pivotsHeap;
    if (values == getDataRef()) {
        work = getDataRef();
        pivotsHeap = cachedPivots;
    } else {
        work = new double[length];
        System.arraycopy(values, begin, work, 0, length);
        pivotsHeap = new int[(0x1 << MAX_CACHED_LEVELS) - 1];
        Arrays.fill(pivotsHeap, -1);
    }

    if (pos < 1) {
        return select(work, pivotsHeap, 0);
    }
    if (pos >= n) {
        return select(work, pivotsHeap, length - 1);
    }
    double lower = select(work, pivotsHeap, intPos - 1);
    double upper = select(work, pivotsHeap, intPos);
    return lower + dif * (upper - lower);
}
Example 4
Source File: Percentile.java    From astor with GNU General Public License v2.0 3 votes vote down vote up 
/**
 * Sets the value of the quantile field (determines what percentile is
 * computed when evaluate() is called with no quantile argument).
 *
 * @param p a value between 0 < p <= 100
 * @throws IllegalArgumentException  if p is not greater than 0 and less
 * than or equal to 100
 */
public void setQuantile(final double p) {
    if (p <= 0 || p > 100) {
        throw new OutOfRangeException(LocalizedFormats.OUT_OF_BOUNDS_QUANTILE_VALUE, p, 0, 100);
    }
    quantile = p;
}
Example 5
Source File: Percentile.java    From astor with GNU General Public License v2.0 3 votes vote down vote up 
/**
 * Sets the value of the quantile field (determines what percentile is
 * computed when evaluate() is called with no quantile argument).
 *
 * @param p a value between 0 < p <= 100
 * @throws IllegalArgumentException  if p is not greater than 0 and less
 * than or equal to 100
 */
public void setQuantile(final double p) {
    if (p <= 0 || p > 100) {
        throw new OutOfRangeException(LocalizedFormats.OUT_OF_BOUNDS_QUANTILE_VALUE, p, 0, 100);
    }
    quantile = p;
}
Example 6
Source File: Percentile.java    From astor with GNU General Public License v2.0 3 votes vote down vote up 
/**
 * Sets the value of the quantile field (determines what percentile is
 * computed when evaluate() is called with no quantile argument).
 *
 * @param p a value between 0 < p <= 100
 * @throws IllegalArgumentException  if p is not greater than 0 and less
 * than or equal to 100
 */
public void setQuantile(final double p) {
    if (p <= 0 || p > 100) {
        throw new OutOfRangeException(LocalizedFormats.OUT_OF_BOUNDS_QUANTILE_VALUE, p, 0, 100);
    }
    quantile = p;
}