public static ObservableDoubleAverage Create(INotifyEnumerable <double> source)
{
var observable = new ObservableDoubleAverage(source);
observable.Successors.SetDummy();
return(observable);
}
public static INotifyValue <double> CreateDoubleExpression <TSource>(this IEnumerableExpression <TSource> source, Expression <Func <TSource, double> > predicate)
{
return(ObservableDoubleAverage.Create(source.AsNotifiable().Select(predicate)));
}