public HarmonicOscillatorModelingResultViewModel(Tuple <List <double>, List <double>, List <double>, List <double> > numeric) { for (var i = 0; i < numeric.Item1.Count; ++i) { Xt.Add(new ObservablePoint(numeric.Item1[i], numeric.Item2[i])); Vt.Add(new ObservablePoint(numeric.Item1[i], numeric.Item3[i])); E.Add(new ObservablePoint(numeric.Item1[i], numeric.Item4[i])); Vx.Add(new ObservablePoint(numeric.Item2[i], numeric.Item3[i])); } Collection.Add(new LineSeries() { Values = Xt }); }