public final double squareSum ( final AbstractMeter meter ) { checkIfMeterExists ( meter ) ; final AbstractUnivariateStatistic sqrSum = new SumOfSquares ( ) ; final CollectionDoubleCollection doubleColl = new CollectionDoubleCollection ( this . meterResults . get ( meter ) ) ; return sqrSum . evaluate ( doubleColl . toArray ( ) , 0 , doubleColl . toArray ( ) . length ) ; }
Computes the square sum of the elements .