ICensus2SigmaLevel.Lower

Syntax

Lower: Double;

Description

The Lower property determines lower border for Sigma. By default the lower border equals to 1.5.

Example

Sub Main;

Var

Census2: SmCensus2;

res: Integer;

s, Av: Array Of Double;

Sub Print(Data: Array Of Double);

Var

i: Integer;

CI: ICultureInfo;

Begin

CI := CultureInfo.Current;

Debug.WriteLine("---Begin---");

For i := 0 To Data.Length - 1 Do

If Double.IsNan(Data[i]) Then

Debug.WriteLine("---empty---");

Else

Debug.WriteLine(i.ToString + ", " + CI.FormatDoublePrec(Data[i], 4));

End If;

End For;

Debug.WriteLine("---End---");

End Sub Print;

Begin

// value s

s := New Double[36];

s[0] := 670.2000183;

s[1] := 576.0680563;

s[2] := 717.6484268;

s[3] := 856.9105808;

s[4] := 885.4609516;

s[5] := 1011.846431;

s[6] := 995.4496292;

s[7] := 1064.74221;

s[8] := 1033.324656;

s[9] := 780.8584552;

s[10] := 657.5033113;

s[11] := 654.5472579;

s[12] := Double.Nan;

s[13] := 642.4128544;

s[14] := Double.Nan;

s[15] := Double.Nan;

s[16] := 884.5042879;

s[17] := 1008.308908;

s[18] := 1108.363628;

s[19] := 1072.737175;

s[20] := 1019.183752;

s[21] := 895.5601672;

s[22] := 811.0306101;

s[23] := 756.601764;

s[24] := 826.6160466;

s[25] := 762.3903317;

s[26] := 931.5707266;

s[27] := 1026.666524;

s[28] := 1114.124119;

s[29] := 1099.626392;

s[30] := 1189.16892;

s[31] := 1092.343791;

s[32] := 1087.503861;

s[33] := 971.6522721;

s[34] := 826.2502823;

s[35] := 789.6322825;

Census2 := New SmCensus2.Create;

Census2.Serie.Value := s;

Census2.ModelPeriod.FirstPoint := 1;

Census2.ModelPeriod.LastPoint := 36;

Census2.MissingData.Method := MissingDataMethod.LinTrend;

Census2.SeasonalComponent.Mode := SeasonalityType.Multiplicative;

Census2.SeasonalComponentCycleType := SeasonalityCycleType.Quater;

Av := New Double[4];

Av[0] := 0.02;

Av[1] := 0.1;

Av[2] := 0.2;

Av[3] := 0.5;

Census2.MovingAverage := Av;

Census2.TraidingDaysAdjustment := TraidingDaysAdj.Auto;

Census2.StartPeriod.Year := 1;

Census2.StartPeriod.MonthOrQuarter := 1;

Census2.SigmaLevel.Lower := 0.9;

Census2.SigmaLevel.Upper := 2;

res := Census2.Execute;

If res<>0 Then

Debug.WriteLine(census2.Errors);

Else

Debug.WriteLine("=== Prior adjusted series ===");

Print(Census2.Results.B1);

Debug.WriteLine("=== Seasonal component ===");

Print(Census2.Results.D10);

End If;

End Sub Main;

After executing the example the console window displays results of calculations that used the following method:

Module execution started

=== Prior adjusted series ===

---Begin---

0, 670.2000

1, 576.0681

2, 717.6484

3, 856.9106

4, 885.4609

5, 1 011.8464

6, 995.4496

7, 1 064.7422

8, 1 033.3247

9, 780.8585

10, 657.5033

11, 654.5472

12, 867.2011

13, 642.4128

14, 879.6692

15, 885.9033

16, 884.5043

17, 1 008.3089

18, 1 108.3636

19, 1 072.7372

20, 1 019.1838

21, 895.5602

22, 811.0306

23, 756.6017

24, 826.6160

25, 762.3903

26, 931.5707

27, 1 026.6665

28, 1 114.1241

29, 1 099.6263

30, 1 189.1689

31, 1 092.3438

32, 1 087.5039

33, 971.6523

34, 826.2503

35, 789.6323

---End---

=== Seasonal component===

---Begin---

0, 107.4600

1, 94.3040

2, 96.9209

3, 101.4956

4, 107.0470

5, 94.4546

6, 97.3650

7, 101.3471

8, 106.1341

9, 95.1908

10, 97.9116

11, 100.8960

12, 105.3047

13, 95.7733

14, 98.6830

15, 100.4335

16, 104.4358

17, 96.1840

18, 99.6344

19, 99.8908

20, 103.9216

21, 96.1583

22, 100.5502

23, 99.5614

24, 103.4403

25, 96.2121

26, 101.1008

27, 99.2574

28, 103.4102

29, 96.1237

30, 101.2853

31, 99.1271

32, 103.5640

33, 95.9287

34, 101.4059

35, 99.0938

36, 103.6409

37, 95.8311

38, 101.4661

39, 99.0771

---End---

Module execution finished