Rows: Integer;
The Rows property returns the number of degrees of freedom for rows.
Sub Main;
Var
VA: SmVarianceAnalysis;
res: Integer;
m: Array Of Double;
DF: IVarianceAnalysisDegreeOfFreedom;
Begin
VA := New SmVarianceAnalysis.Create;
m := New Double[5, 3];
m[0, 0] := 1; m[0, 1] := 4; m[0, 2] := 1;
m[1, 0] := 2; m[1, 1] := 3; m[1, 2] := 2;
m[2, 0] := 3; m[2, 1] := 3; m[2, 2] := 1;
m[3, 0] := 4; m[3, 1] := 1; m[3, 2] := 2;
m[4, 0] := 5; m[4, 1] := 1; m[4, 2] := 1;
VA.Data := m;
VA.AnalysisType := VarianceAnalysisType.TwoFactor; // two-factor analysis
VA.ConfidenceLevel := 0.05;
res := VA.Execute;
If res <> 0 Then
Debug.WriteLine(VA.Errors);
Else
Debug.WriteLine("Number of degrees of freedom");
DF := VA.DegreeOfFreedom;
Debug.WriteLine("rows : " + DF.Rows.ToString);
Debug.WriteLine("columns : " + DF.Columns.ToString);
Debug.WriteLine("accuracy : " + DF.Accuracy.ToString);
Debug.WriteLine("total: " + DF.Total.ToString);
End If;
End Sub Main;
Executing the example displays the results of the variance analysis in the console window:
Module execution started
Number of degrees of freedom
Rows: 4
Columns: 2
Error: 8
Total: 14
Module execution finished
See also: