/**
* {@inheritDoc}
*/
public override UnivariateStatistic copy()
{
Variance result = new Variance();
// No try-catch or advertised exception because parameters are guaranteed non-null
copy(this, result);
return(result);
}
/**
* Copies source to dest.
* <p>Neither source nor dest can be null.</p>
*
* @param source Variance to copy
* @param dest Variance to copy to
* @throws NullArgumentException if either source or dest is null
*/
public static void copy(Variance source, Variance dest)
{
MathUtils.checkNotNull(source);
MathUtils.checkNotNull(dest);
dest.setData(source.getDataRef());
dest.moment = (SecondMoment)source.moment.copy();
dest._isBiasCorrected = source._isBiasCorrected;
dest.incMoment = source.incMoment;
}
/**
* Copy constructor, creates a new {@code Variance} identical
* to the {@code original}
*
* @param original the {@code Variance} instance to copy
* @throws NullArgumentException if original is null
*/
public Variance(Variance original)
{
copy(original, this);
}
