/** {@inheritDoc} */
@Override
public void increment(final double d) {
if (n < 1) {
m3 = m2 = m1 = 0.0;
}
double prevM2 = m2;
super.increment(d);
nDevSq = nDev * nDev;
double n0 = n;
m3 = m3 - 3.0 * nDev * prevM2 + (n0 - 1) * (n0 - 2) * nDevSq * dev;
}
/** {@inheritDoc} */
@Override
public void clear() {
super.clear();
m3 = Double.NaN;
nDevSq = Double.NaN;
}
/**
* Copies source to dest.
*
* <p>Neither source nor dest can be null.
*
* @param source ThirdMoment to copy
* @param dest ThirdMoment to copy to
* @throws NullPointerException if either source or dest is null
*/
public static void copy(ThirdMoment source, ThirdMoment dest) {
SecondMoment.copy(source, dest);
dest.m3 = source.m3;
dest.nDevSq = source.nDevSq;
}
