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