public static WindowOver<Double> regrSyy(Expression<? extends Number> arg1, Expression<? extends Number> arg2) {
        return new WindowOver<Double>(Double.class, SQLOps.REGR_SYY, arg1, arg2);
    }
public static WindowOver < Double > regrSyy ( Expression < ? extends Number > arg1 , Expression < ? extends Number > arg2 ) { return new WindowOver < Double > ( Double . class , SQLOps . REGR_SYY , arg1 , arg2 ) ; }
REGR_SYY makes the following computation after the elimination of null (arg1, arg2) pairs:

<p>{@code REGR_COUNT(arg1, arg2) * VAR_POP(arg1)}</p>

@param arg1 first arg
@param arg2 second arg
@return regr_syy(arg1, arg2)