How to use

Kurtosis

in

org.apache.commons.math3.stat.descriptive.moment

  @Override
  public Double summarize(NumericColumn<?> column) {
    double[] data = removeMissing(column);
    return new Kurtosis().evaluate(data, 0, data.length);
  }
};

/**
 * {@inheritDoc}
 */
@Override
public Kurtosis copy() {
  Kurtosis result = new Kurtosis();
  // No try-catch because args are guaranteed non-null
  copy(this, result);
  return result;
}

/**
 * Copies source to dest.
 * <p>Neither source nor dest can be null.</p>
 *
 * @param source Kurtosis to copy
 * @param dest Kurtosis to copy to
 * @throws NullArgumentException if either source or dest is null
 */
public static void copy(Kurtosis source, Kurtosis dest)
  throws NullArgumentException {
  MathUtils.checkNotNull(source);
  MathUtils.checkNotNull(dest);
  dest.setData(source.getDataRef());
  dest.moment = source.moment.copy();
  dest.incMoment = source.incMoment;
}

public static void main(String[] args) {
  final double[] values = new java.util.Random().doubles(5000).toArray();
  final Kurtosis stat1 = new Kurtosis();
  final org.apache.commons.math3.stat.descriptive.moment.Kurtosis stat2 = new org.apache.commons.math3.stat.descriptive.moment.Kurtosis();
  for (double value : values) {
    stat1.add(value);
    stat2.increment(value);
  }
  final double result1 = stat1.getValue();
  final double result2 = stat2.getResult();
  if (result1 != result2) {
    throw new RuntimeException("Error: " + result1 + " != " + result2);
  }
}

  public Kurtosis() {
    super(new org.apache.commons.math3.stat.descriptive.moment.Kurtosis());
  }
}

/**
 * Copy constructor, creates a new {@code Kurtosis} identical
 * to the {@code original}
 *
 * @param original the {@code Kurtosis} instance to copy
 * @throws NullArgumentException if original is null
 */
public Kurtosis(Kurtosis original) throws NullArgumentException {
  copy(original, this);
}

if (test(values, begin, length) && length > 3) {

  public Kurtosis() {
    super(new org.apache.commons.math3.stat.descriptive.moment.Kurtosis());
  }
}

/**
 * Copy constructor, creates a new {@code Kurtosis} identical
 * to the {@code original}
 *
 * @param original the {@code Kurtosis} instance to copy
 * @throws NullArgumentException if original is null
 */
public Kurtosis(Kurtosis original) throws NullArgumentException {
  copy(original, this);
}

if (test(values, begin, length) && length > 3) {

@Override
public Number getExpectedValue(int start, int length)
{
  if (length < 4) {
    return null;
  }
  double[] values = new double[length];
  for (int i = 0; i < length; i++) {
    values[i] = start + i;
  }
  Kurtosis kurtosis = new Kurtosis();
  return kurtosis.evaluate(values);
}

/**
 * {@inheritDoc}
 */
@Override
public Kurtosis copy() {
  Kurtosis result = new Kurtosis();
  // No try-catch because args are guaranteed non-null
  copy(this, result);
  return result;
}

  return new GeometricMean();
case Kurtosis:
  return new Kurtosis();
case Max:
  return new Max();

/**
 * Copies source to dest.
 * <p>Neither source nor dest can be null.</p>
 *
 * @param source Kurtosis to copy
 * @param dest Kurtosis to copy to
 * @throws NullArgumentException if either source or dest is null
 */
public static void copy(Kurtosis source, Kurtosis dest)
  throws NullArgumentException {
  MathUtils.checkNotNull(source);
  MathUtils.checkNotNull(dest);
  dest.setData(source.getDataRef());
  dest.moment = source.moment.copy();
  dest.incMoment = source.incMoment;
}

/**
 * Copy constructor, creates a new {@code Kurtosis} identical
 * to the {@code original}
 *
 * @param original the {@code Kurtosis} instance to copy
 * @throws NullArgumentException if original is null
 */
public Kurtosis(Kurtosis original) throws NullArgumentException {
  copy(original, this);
}

if (test(values, begin, length) && length > 3) {

@Override
public Number getExpectedValue(int start, int length)
{
  if (length < 4) {
    return null;
  }
  double[] values = new double[length];
  for (int i = 0; i < length; i++) {
    values[i] = start + i;
  }
  Kurtosis kurtosis = new Kurtosis();
  return kurtosis.evaluate(values);
}

/**
 * {@inheritDoc}
 */
@Override
public Kurtosis copy() {
  Kurtosis result = new Kurtosis();
  // No try-catch because args are guaranteed non-null
  copy(this, result);
  return result;
}

/**
 * Copies source to dest.
 * <p>Neither source nor dest can be null.</p>
 *
 * @param source Kurtosis to copy
 * @param dest Kurtosis to copy to
 * @throws NullArgumentException if either source or dest is null
 */
public static void copy(Kurtosis source, Kurtosis dest)
  throws NullArgumentException {
  MathUtils.checkNotNull(source);
  MathUtils.checkNotNull(dest);
  dest.setData(source.getDataRef());
  dest.moment = source.moment.copy();
  dest.incMoment = source.incMoment;
}

  @Override
  public Double summarize(NumericColumn<?> column) {
    double[] data = removeMissing(column);
    return new Kurtosis().evaluate(data, 0, data.length);
  }
};