LazStats: Split output of LSMRUnit into several tabs. Better layout of the output.

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@7769 8e941d3f-bd1b-0410-a28a-d453659cc2b4

applications/lazstats/source/forms/analysis/multiple_regression/lsmrunit.lfm

@@ -127,9 +127,9 @@ inherited LSMregForm: TLSMregForm
       Left = 0
       Height = 15
       Top = 232
-      Width = 163
+      Width = 192
       BorderSpacing.Right = 8
-      Caption = 'Minimum Prob. to enter block:'
+      Caption = 'Minimum probability to enter block:'
       ParentColor = False
     end
     object OptionsGroup: TGroupBox[12]
@@ -194,7 +194,7 @@ inherited LSMregForm: TLSMregForm
         Caption = 'Show Variances'
         TabOrder = 4
       end
-      object SDChkBox: TCheckBox
+      object StdDevChkBox: TCheckBox
         Left = 190
         Height = 19
         Top = 48
@@ -295,7 +295,7 @@ inherited LSMregForm: TLSMregForm
       AnchorSideLeft.Side = asrBottom
       AnchorSideRight.Side = asrBottom
       AnchorSideBottom.Control = OptionsGroup
-      Left = 171
+      Left = 200
       Height = 23
       Top = 228
       Width = 50
@@ -326,7 +326,36 @@ inherited LSMregForm: TLSMregForm
     Left = 413
     Height = 430
   end
-  object SaveDialog: TSaveDialog[2]
+  object PageControl: TPageControl[2]
+    Left = 422
+    Height = 414
+    Top = 8
+    Width = 580
+    ActivePage = MeanVarStddevPage
+    Align = alClient
+    BorderSpacing.Left = 4
+    BorderSpacing.Top = 8
+    BorderSpacing.Right = 8
+    BorderSpacing.Bottom = 8
+    TabIndex = 4
+    TabOrder = 2
+    object RegressionPage: TTabSheet
+      Caption = 'Regression'
+    end
+    object CrossProductsPage: TTabSheet
+      Caption = 'Cross-Products Matrix'
+    end
+    object VarCovarPage: TTabSheet
+      Caption = 'Variance-Covariance'
+    end
+    object CorrelationsPage: TTabSheet
+      Caption = 'Correlations'
+    end
+    object MeanVarStddevPage: TTabSheet
+      Caption = 'MeanVarStdDev'
+    end
+  end
+  object SaveDialog: TSaveDialog[3]
     Left = 45
     Top = 357
   end

applications/lazstats/source/forms/analysis/multiple_regression/lsmrunit.pas

@@ -6,14 +6,14 @@ interface
 
 uses
   Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs,
-  StdCtrls, Buttons, ExtCtrls, Globals, MainUnit, MatrixLib, 
+  StdCtrls, Buttons, ExtCtrls, ComCtrls, Globals, MainUnit, MatrixLib, 
-  DataProcs, DictionaryUnit, BasicStatsReportFormUnit;
+  DataProcs, DictionaryUnit, BasicStatsParamsFormUnit, ReportFrameUnit;
 
 type
 
   { TLSMregForm }
 
-  TLSMregForm = class(TBasicStatsReportForm)
+  TLSMregForm = class(TBasicStatsParamsForm)
     AllBtn: TBitBtn;
     IndepVars: TListBox;
     CorrsChkBox: TCheckBox;
@@ -31,10 +31,16 @@ type
     Label5: TLabel;
     MatSaveChkBox: TCheckBox;
     MeansChkBox: TCheckBox;
+    PageControl: TPageControl;
     SaveDialog: TSaveDialog;
     OutBtn: TBitBtn;
     PredictChkBox: TCheckBox;
-    SDChkBox: TCheckBox;
+    StdDevChkBox: TCheckBox;
+    RegressionPage: TTabSheet;
+    CrossProductsPage: TTabSheet;
+    CorrelationsPage: TTabSheet;
+    MeanVarStddevPage: TTabSheet;
+    VarCovarPage: TTabSheet;
     VarChkBox: TCheckBox;
     VarList: TListBox;
     procedure AllBtnClick(Sender: TObject);
@@ -47,14 +53,21 @@ type
     procedure VarListSelectionChange(Sender: TObject; {%H-}User: boolean);
   private
     { private declarations }
+    FRegressionFrame: TReportFrame;
+    FCrossProductsFrame: TReportFrame;
+    FCorrelationsFrame: TReportFrame;
+    FVarCovarFrame: TReportFrame;
+    FMeanVarStddevFrame: TReportFrame;
     IndepVarsCols: IntDyneVec;
     NoVars: integer;
     NoBlocks: integer;
+    procedure HideTabs;
   protected
     procedure AdjustConstraints; override;
     procedure Compute; override;
     procedure UpdateBtnStates; override;
   public
+    constructor Create(AOwner: TComponent); override;
     procedure Reset; override;
   end;
 
@@ -73,6 +86,64 @@ uses
 
 { TLSMregForm }
 
+constructor TLSMregForm.Create(AOwner: TComponent);
+begin
+  inherited;
+
+  FRegressionFrame := TReportFrame.Create(self);
+  FRegressionFrame.Name := '';
+  FRegressionFrame.Parent := RegressionPage;
+  FRegressionFrame.Align := alClient;
+  FRegressionFrame.BorderSpacing.Left := 0;
+  FRegressionFrame.BorderSpacing.Top := 0;
+  FRegressionFrame.BorderSpacing.Bottom := 0;
+  FRegressionFrame.BorderSpacing.Right := 0;
+  InitToolbar(FRegressionFrame.ReportToolbar, tpRight);
+
+  FCrossProductsFrame := TReportFrame.Create(self);
+  FCrossProductsFrame.Name := '';
+  FCrossProductsFrame.Parent := CrossProductsPage;
+  FCrossProductsFrame.Align := alClient;
+  FCrossProductsFrame.BorderSpacing.Left := 0;
+  FCrossProductsFrame.BorderSpacing.Top := 0;
+  FCrossProductsFrame.BorderSpacing.Bottom := 0;
+  FCrossProductsFrame.BorderSpacing.Right := 0;
+  InitToolbar(FCrossProductsFrame.ReportToolbar, tpRight);
+
+  FCorrelationsFrame := TReportFrame.Create(self);
+  FCorrelationsFrame.Name := '';
+  FCorrelationsFrame.Parent := CorrelationsPage;
+  FCorrelationsFrame.Align := alClient;
+  FCorrelationsFrame.BorderSpacing.Left := 0;
+  FCorrelationsFrame.BorderSpacing.Top := 0;
+  FCorrelationsFrame.BorderSpacing.Bottom := 0;
+  FCorrelationsFrame.BorderSpacing.Right := 0;
+  InitToolbar(FCorrelationsFrame.ReportToolbar, tpRight);
+
+  FVarCovarFrame := TReportFrame.Create(self);
+  FVarCovarFrame.Name := '';
+  FVarCovarFrame.Parent := VarCovarPage;
+  FVarCovarFrame.Align := alClient;
+  FVarCovarFrame.BorderSpacing.Left := 0;
+  FVarCovarFrame.BorderSpacing.Top := 0;
+  FVarCovarFrame.BorderSpacing.Bottom := 0;
+  FVarCovarFrame.BorderSpacing.Right := 0;
+  InitToolbar(FVarCovarFrame.ReportToolbar, tpRight);
+
+  FMeanVarStddevFrame := TReportFrame.Create(self);
+  FMeanVarStddevFrame.Name := '';
+  FMeanVarStddevFrame.Parent := MeanVarStdDevPage;
+  FMeanVarStddevFrame.Align := alClient;
+  FMeanVarStddevFrame.BorderSpacing.Left := 0;
+  FMeanVarStddevFrame.BorderSpacing.Top := 0;
+  FMeanVarStddevFrame.BorderSpacing.Bottom := 0;
+  FMeanVarStddevFrame.BorderSpacing.Right := 0;
+  InitToolbar(FMeanVarStddevFrame.ReportToolbar, tpRight);
+
+  PageControl.ActivePage := RegressionPage;
+end;
+
+
 procedure TLSMregForm.AdjustConstraints;
 begin
   ParamsPanel.Constraints.MinWidth := Max(
@@ -125,6 +196,14 @@ var
   errcode: boolean = false;
   anerror: Integer = 0;
   lReport: TStrings;
+
+  procedure AddHeaderToReport;
+  begin
+    lReport.Clear;
+    lReport.Add('LEAST SQUARES MULTIPLE REGRESSION by Bill Miller');
+    lReport.Add('');
+  end;
+
 begin
   NCases := NoCases;
   SetLength(corrs,NoVariables+1,NoVariables+1);
@@ -159,8 +238,6 @@ begin
 
   lReport := TStringList.Create;
   try
-    lReport.Add('LEAST SQUARES MULTIPLE REGRESSION by Bill Miller');
-    lReport.Add('');
     errorcode := false;
 
     { get dependendent variable column }
@@ -199,55 +276,75 @@ begin
     if CPChkBox.Checked  then
     begin
       title := 'Cross-Products Matrix';
+      AddHeaderToReport;
       GridXProd(NEntered, ColEntered, Corrs, errcode, NCases);
       MatPrint(Corrs, NEntered, NEntered, title, IndRowLabels, IndColLabels, NCases, lReport);
-      lReport.Add(DIVIDER_SMALL);
+      FCrossProductsFrame.DisplayReport(lReport);
-    end;
+      CrossProductsPage.TabVisible := true;
+    end else
+      CrossProductsPage.TabVisible := false;
 
     if CovChkBox.Checked then
     begin
       title := 'Variance-Covariance Matrix';
+      AddHeaderToReport;
       GridCovar(NEntered,ColEntered, Corrs, Means, Variances, StdDevs, errcode, NCases);
       MatPrint(Corrs, NEntered, NEntered, title, IndRowLabels, IndColLabels, NCases, lReport);
-      lReport.Add(DIVIDER_SMALL);
+      FVarCovarFrame.DisplayReport(lReport);
+      VarCovarPage.TabVisible := true;
+//      lReport.Add(DIVIDER_SMALL);
     end;
-    Correlations(NEntered,ColEntered,Corrs,Means,Variances, StdDevs,errcode,NCases);
 
+    Correlations(NEntered,ColEntered,Corrs,Means,Variances, StdDevs,errcode,NCases);
     if CorrsChkBox.Checked then
     begin
       title := 'Product-Moment Correlations Matrix';
+      AddHeaderToReport;
       MatPrint(Corrs, NEntered, NEntered, title, IndRowLabels, IndColLabels, NCases, lReport);
-      lReport.Add(DIVIDER_SMALL);
+      FCorrelationsFrame.DisplayReport(lReport);
-    end;
+      CorrelationsPage.TabVisible := true;
+    end else
+      CorrelationsPage.TabVisible := false;
 
-    if MeansChkBox.Checked then
+    if MeansChkBox.Checked or VarChkBox.Checked or StdDevChkBox.Checked then
     begin
-      title := 'Means';
+      AddHeaderToReport;
-      DynVectorPrint(Means, NEntered, title, IndColLabels, NCases, lReport);
-      lReport.Add(DIVIDER_SMALL);
-    end;
 
-    if VarChkBox.Checked = true then
+      if MeansChkBox.Checked then
-    begin
+      begin
-      title := 'Variances';
+        title := 'Means';
-      DynVectorPrint(Variances, NEntered, title, IndColLabels, NCases, lReport);
+        DynVectorPrint(Means, NEntered, title, IndColLabels, NCases, lReport);
-      lReport.Add(DIVIDER_SMALL);
+        lReport.Add(DIVIDER_SMALL);
-    end;
+      end;
 
-    if SDChkBox.Checked = true then
+      if VarChkBox.Checked then
-    begin
+      begin
-      title := 'Standard Deviations';
+        title := 'Variances';
-      DynVectorPrint(StdDevs, NEntered, title, IndColLabels, NCases, lReport);
+        DynVectorPrint(Variances, NEntered, title, IndColLabels, NCases, lReport);
-      lReport.Add(DIVIDER_SMALL);
+        lReport.Add(DIVIDER_SMALL);
-    end;
+      end;
+
+      if StdDevChkBox.Checked then
+      begin
+        title := 'Standard Deviations';
+        DynVectorPrint(StdDevs, NEntered, title, IndColLabels, NCases, lReport);
+        lReport.Add(DIVIDER_SMALL);
+      end;
+
+      FMeanVarStddevFrame.DisplayReport(lReport);
+      MeanVarStddevPage.TabVisible := true;
+    end else
+      MeanVarStddevPage.TabVisible := false;
 
     if errorcode then
     begin
-      MessageDlg('A selected variable has no variability. Run aborted.', mtError, [mbOK], 0);
+      ErrorMsg('A selected variable has no variability. Run aborted.');
       exit;
     end;
     NoIndepVars := NEntered - 1;
 
+    AddHeaderToReport;
+
     MReg(NoIndepVars, ColEntered, DepVarCol, IndRowLabels, Means, Variances,
          StdDevs, BWeights, BetaWeights, BStdErrs, Bttests, tProbs, R2,
          StdErrEst, NCases, errorcode, true, lReport);
@@ -256,6 +353,7 @@ begin
     df2 := NCases - NoIndepVars - 1;
     F := ((R2 - OldR2) / (1.0 - R2)) * df2 / df1;
     FProbF := ProbF(F,df1,df2);
+    lReport.Add('');
     if FProbF < probIn then
       lReport.Add('Entry requirements met')
     else
@@ -279,9 +377,6 @@ begin
               BetaWeights, StdErrEst, IndepVarsCols, NoIndepVars);
     end;
 
-//   OutputFrm.ShowModal;
-//   OutputFrm.RichEdit.Clear;
-
     if MatSaveChkBox.Checked then
     begin
       SaveDialog.Filter := 'LazStats matrix files (*.mat)|*.mat;*.MAT|All files (*.*)|*.*';
@@ -293,7 +388,7 @@ begin
       end;
     end;
 
-    FReportFrame.DisplayReport(lReport);
+    FRegressionFrame.DisplayReport(lReport);
 
   finally
     lReport.Free;
@@ -358,6 +453,15 @@ begin
 end;
 
 
+procedure TLSMregForm.HideTabs;
+var
+  i: Integer;
+begin
+  for i := 1 to PageControl.PageCount-1 do      // i=1 --> keep 1st page visible
+    PageControl.Pages[i].TabVisible := false;
+end;
+
+
 procedure TLSMregForm.OutBtnClick(Sender: TObject);
 var
   i: integer;
@@ -394,7 +498,7 @@ begin
   CorrsChkBox.Checked := true;
   MeansChkBox.Checked := true;
   VarChkBox.Checked := false;
-  SDChkBox.Checked := true;
+  StdDevChkBox.Checked := true;
   MatSaveChkBox.Checked := false;
   PredictChkBox.Checked := false;
 
@@ -403,6 +507,7 @@ begin
   InProb.Text := FormatFloat('0.00', DEFAULT_ALPHA_LEVEL);
   SetLength(IndepVarsCols, NoVariables+1);
 
+  HideTabs;
   UpdateBtnStates;
 end;
 
@@ -412,11 +517,21 @@ var
   lSelected: Boolean;
 begin
   inherited;
-	
+
+  if Assigned(FRegressionFrame) then
+    FRegressionFrame.UpdateBtnStates;
+  if Assigned(FCrossProductsFrame) then
+    FCrossProductsFrame.UpdateBtnStates;
+  if Assigned(FCorrelationsFrame) then
+    FCorrelationsFrame.UpdateBtnStates;
+  if Assigned(FVarCovarFrame) then
+    FVarCovarFrame.UpdateBtnStates;
+  if Assigned(FMeanVarStddevFrame) then
+    FMeanVarStddevFrame.UpdateBtnStates;
+
   lSelected := AnySelected(VarList);
   DepInBtn.Enabled := lSelected;
   InBtn.Enabled := lSelected;
-
   OutBtn.Enabled := AnySelected(IndepVars);
   DepOutBtn.Enabled := DepVar.Text <> '';
   AllBtn.Enabled := VarList.Items.Count > 0;

applications/lazstats/source/units/matrixlib.pas

@@ -8,6 +8,9 @@ uses
   Classes, SysUtils, Dialogs,
   Globals, DictionaryUnit, FunctionsLib, DataProcs, MainUnit;
 
+//type
+//  TRegItem = (riMeanVarStdDev, riXTX);
+
 procedure GridDotProd(col1, col2: integer; out Product: double; var Ngood: integer);
 
 procedure GridXProd(NoSelected : integer;
@@ -27,7 +30,7 @@ procedure Correlations(NoSelected: integer; const Selected: IntDyneVec;
 procedure MatAxB(const A, B, C: DblDyneMat; BRows, BCols, CRows, CCols: Integer;
   out ErrorCode: boolean);
 
-procedure MatTrn(var A, B: DblDyneMat; BRows, BCols: Integer);
+procedure MatTrn(var A: DblDyneMat; const B: DblDyneMat; BRows, BCols: Integer);
 
 procedure nonsymroots(a : DblDyneMat; nv : integer;
                       var nf : integer; c : real;
@@ -46,6 +49,7 @@ procedure EffectCode(GridCol, min, max : integer;
                     VAR startcol : integer;
                     VAR endcol : integer;
                     VAR novectors : integer);
+
 procedure MReg(NoIndep: integer; const IndepCols: IntDyneVec; DepCol: integer;
   const RowLabels: StrDyneVec;
   const Means, Variances, StdDevs, BWeights, BetaWeights, BStdErrs, Bttests, tProbs: DblDyneVec;
@@ -368,8 +372,8 @@ end; { of MATAxB }
 
 //-------------------------------------------------------------------
 
-// transpose the b matrix and return it in a
+// transpose the B matrix and return it in A
-procedure MatTrn(var A, B: DblDyneMat; BRows, BCols : integer);
+procedure MatTrn(var A: DblDyneMat; const B: DblDyneMat; BRows, BCols : integer);
 var
   i, j: integer;
 begin
@@ -624,27 +628,27 @@ procedure MReg(NoIndep: integer; const IndepCols: IntDyneVec; DepCol: integer;
   PrintAll: boolean; AReport: TStrings);
 var
   i, j, N: integer;
-  X: DblDyneMat;
+  X: DblDyneMat = nil;
-  XT: DblDyneMat;
+  XT: DblDyneMat = nil;
-  XTX: DblDyneMat;
+  XTX: DblDyneMat = nil;
-  XTY: DblDyneVec;
+  XTY: DblDyneVec = nil;
-  Y: DblDyneVec;
+  Y: DblDyneVec = nil;
-  indx: IntDyneVec;
+  indx: IntDyneVec = nil;
-  ColLabels: StrDyneVec;
+  ColLabels: StrDyneVec = nil;
   F, Prob, VarY, SDY, MeanY: double;
   value, TOL, VIF, AdjR2: double;
   SSY, SSres, resvar, SSreg: double;
   title: string;
   deplabel: string;
-  errcode: boolean;
+  errcode: boolean = false;
 begin
   Assert(OS3MainFrm <> nil);
 
-  SetLength(X, NoCases+1, NoIndep+1); // augmented independent var. matrix
+  SetLength(X, NoCases+1, NoIndep+1);   // augmented independent var. matrix
-  SetLength(XT, NoIndep+1, NoCases); // transpose of independent var's
+  SetLength(XT, NoIndep+1, NoCases);    // transpose of independent var's
-  SetLength(XTX, NoIndep+1, NoIndep+1); // product of transpose X times X
+  SetLength(XTX, NoIndep+1, NoIndep+1); // product of (transpose X) times X
-  SetLength(Y, NCases+1); // Y variable values
+  SetLength(Y, NCases+1);               // Y variable values
-  SetLength(XTY, NoIndep+1); // X transpose times Y
+  SetLength(XTY, NoIndep+1);            // (X transpose) times Y
   SetLength(indx, NoIndep+1);
   SetLength(ColLabels, NCases);
 
@@ -706,9 +710,11 @@ begin
   VarY := VarY / (NCases - 1);
   SDY := sqrt(VarY);
 
-  AReport.Add('Variance Y: %10.3f', [VarY]);
+  AReport.Add('Sum of Squares Y: %20.3f', [SSY]);
-  AReport.Add('SSY:        %10.3f', [SSY]);
+  AReport.Add('Variance Y:       %20.3f', [VarY]);
-  AReport.Add('SDY:        %10.3f', [SDY]);
+  AReport.Add('Std. Deviation Y: %20.3f', [SDY]);
+  AReport.Add('');
+  AReport.Add(DIVIDER_SMALL);
 
   // augment the matrix
   for i := 1 to NCases do
@@ -719,8 +725,11 @@ begin
   MatTrn(XT, X, NCases, NoIndep+1);
   if PrintAll then
   begin
+    AReport.Add('');
     title := 'XT MATRIX';
     MatPrint(XT, NoIndep+1, NCases, title, RowLabels, ColLabels, NCases, AReport);
+    AReport.Add(DIVIDER_SMALL);
+    AReport.Add('');
   end;
 
   // get product of the augmented X transpose times augmented X
@@ -729,6 +738,8 @@ begin
   begin
     title := 'XTX MATRIX';
     MatPrint(XTX, Noindep+1, NoIndep+1, title, RowLabels, RowLabels, NCases, AReport);
+    AReport.Add(DIVIDER_SMALL);
+    AReport.Add('');
   end;
 
   //Get means, variances and standard deviations
@@ -747,8 +758,14 @@ begin
   if PrintAll then
   begin
     DynVectorPrint(Means, NoIndep+1, 'MEANS', RowLabels, NCases, AReport);
+    AReport.Add(DIVIDER_SMALL);
+    AReport.Add('');
     DynVectorPrint(Variances, NoIndep+1,'VARIANCES',RowLabels, NCases, AReport);
-    DynVectorPrint(StdDevs, NoIndep+1, 'STD. DEV.S', RowLabels, NCases, AReport);
+    AReport.Add(DIVIDER_SMALL);
+    AReport.Add('');
+    DynVectorPrint(StdDevs, NoIndep+1, 'STD. DEVs', RowLabels, NCases, AReport);
+    AReport.Add(DIVIDER_SMALL);
+    AReport.Add('');
   end;
 
   // get product of the augmented X transpose matrix times the Y vector
@@ -756,14 +773,19 @@ begin
     for j := 0 to NCases-1 do
       XTY[i] := XTY[i] + (XT[i,j] * Y[j]);
   if PrintAll then
+  begin
     DynVectorPrint(XTY, NoIndep+1, 'XTY VECTOR', RowLabels, NCases, AReport);
+    AReport.Add(DIVIDER_SMALL);
+  end;
 
    // get inverse of the augmented cross products matrix among independent variables
   SVDInverse(XTX,N);
   if PrintAll then
   begin
+     AReport.Add('');
     title := 'XTX MATRIX INVERSE';
     MatPrint(XTX, NoIndep+1, NoIndep+1, title, RowLabels, RowLabels, NCases, AReport);
+    AReport.Add(DIVIDER);
   end;
 
   // multiply augmented inverse matrix times the XTY vector
@@ -797,23 +819,24 @@ begin
   AdjR2 := 1.0 - (1.0 - R2) * (NCases - 1) / (NCases - N);
   if PrintAll then
   begin
+    AReport.Add('');
     AReport.Add('Dependent variable: ' + deplabel);
     AReport.Add('');
     DynVectorPrint(BWeights, NoIndep+1, 'B WEIGHTS', RowLabels, NCases, AReport);
-    AReport.Add('');
+    AReport.Add(DIVIDER_SMALL);
     AReport.Add('');
     AReport.Add('Dependent variable: ' + deplabel);
     AReport.Add('');
     DynVectorPrint(BetaWeights, NoIndep, 'BETA WEIGHTS', RowLabels, NCases, AReport);
-    AReport.Add('');
+    AReport.Add(DIVIDER_SMALL);
     AReport.Add('');
     DynVectorPrint(BStdErrs, NoIndep+1, 'B STD.ERRORS', RowLabels, NCases, AReport);
     AReport.Add('');
     DynVectorPrint(Bttests, NoIndep+1, 'B t-test VALUES', RowLabels, NCases, AReport);
     AReport.Add('');
     DynVectorPrint(tprobs, NoIndep+1, 'B t VALUE PROBABILITIES', RowLabels, NCases, AReport);
+    AReport.Add(DIVIDER);
     AReport.Add('');
-
     AReport.Add('SSY:                        %10.2f', [SSY]);
     AReport.Add('SSreg:                      %10.2f', [SSreg]);
     AReport.Add('SSres:                      %10.2f', [SSres]);
@@ -829,6 +852,8 @@ begin
     //AReport.Add('Standard Error of Estimate = %8.2f', [stderrest]);
   end;
 
+  AReport.Add(DIVIDER_SMALL);
+  AReport.Add('');
   RowLabels[N-1] := 'Intercept';
   AReport.Add(' Variable     Beta        B       Std.Err.      t         prob       VIF      TOL');
   AReport.Add('---------- ---------- ---------- ---------- ---------- ---------- --------- ----------');