Files
lazarus-ccr/applications/lazstats/source/forms/analysis/nonparametric/lifetableunit.pas

403 lines
10 KiB
ObjectPascal

unit LifeTableUnit;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, FileUtil, LResources, Forms, Controls, Graphics, Dialogs,
StdCtrls, Buttons, ExtCtrls, Grids,
MainUnit, Globals, FunctionsLib, OutputUnit,
GraphLib, ContextHelpUnit;
type
{ TLifeTableForm }
TLifeTableForm = class(TForm)
Bevel1: TBevel;
HelpBtn: TButton;
CIEdit: TEdit;
Label7: TLabel;
Memo1: TLabel;
NoCensoredEdit: TEdit;
Label6: TLabel;
NoDiedEdit: TEdit;
Label5: TLabel;
NoAliveEdit: TEdit;
Label4: TLabel;
ObsEndEdit: TEdit;
Label3: TLabel;
ObsStartEdit: TEdit;
Label2: TLabel;
ObsStartInBtn: TBitBtn;
ObsEndInBtn: TBitBtn;
AliveInBtn: TBitBtn;
NoDiedInBtn: TBitBtn;
NoCensoredInBtn: TBitBtn;
ObsStartOutBtn: TBitBtn;
ObsEndOutBtn: TBitBtn;
AliveOutBtn: TBitBtn;
NoDiedOutBtn: TBitBtn;
NoCensoredOutBtn: TBitBtn;
Panel1: TPanel;
Panel2: TPanel;
Panel3: TPanel;
ResetBtn: TButton;
ComputeBtn: TButton;
CloseBtn: TButton;
Label1: TLabel;
Grid: TStringGrid;
Splitter1: TSplitter;
VarList: TListBox;
procedure AliveInBtnClick(Sender: TObject);
procedure AliveOutBtnClick(Sender: TObject);
procedure ComputeBtnClick(Sender: TObject);
procedure FormActivate(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure FormShow(Sender: TObject);
procedure HelpBtnClick(Sender: TObject);
procedure NoCensoredInBtnClick(Sender: TObject);
procedure NoCensoredOutBtnClick(Sender: TObject);
procedure NoDiedInBtnClick(Sender: TObject);
procedure NoDiedOutBtnClick(Sender: TObject);
procedure ObsEndInBtnClick(Sender: TObject);
procedure ObsEndOutBtnClick(Sender: TObject);
procedure ObsStartInBtnClick(Sender: TObject);
procedure ObsStartOutBtnClick(Sender: TObject);
procedure ResetBtnClick(Sender: TObject);
procedure VarListSelectionChange(Sender: TObject; User: boolean);
private
{ private declarations }
FAutoSized: Boolean;
procedure UpdateBtnStates;
public
{ public declarations }
end;
var
LifeTableForm: TLifeTableForm;
implementation
uses
Math;
{ TLifeTableForm }
procedure TLifeTableForm.FormActivate(Sender: TObject);
var
w: Integer;
begin
if FAutoSized then
exit;
w := MaxValue([HelpBtn.Width, ResetBtn.Width, ComputeBtn.Width, CloseBtn.Width]);
HelpBtn.Constraints.MinWidth := w;
ResetBtn.Constraints.MinWidth := w;
ComputeBtn.Constraints.MinWidth := w;
CloseBtn.Constraints.MinWidth := w;
Constraints.MinWidth := Width;
Constraints.MinHeight := Height;
FAutoSized := True;
end;
procedure TLifeTableForm.FormCreate(Sender: TObject);
begin
Assert(OS3MainFrm <> nil);
CIEdit.Text := FormatFloat('0.00', DEFAULT_CONFIDENCE_LEVEL_PERCENT * 0.01);
end;
procedure TLifeTableForm.FormShow(Sender: TObject);
begin
ResetBtnClick(self);
end;
procedure TLifeTableForm.HelpBtnClick(Sender: TObject);
begin
if ContextHelpForm = nil then
Application.CreateForm(TContextHelpForm, ContextHelpForm);
ContextHelpForm.HelpMessage((Sender as TButton).tag);
end;
procedure TLifeTableForm.NoCensoredInBtnClick(Sender: TObject);
var
index: integer;
begin
index := VarList.ItemIndex;
if (index > -1) and (NoCensoredEdit.Text = '') then
begin
NoCensoredEdit.Text := VarList.Items[index];
VarList.Items.Delete(index);
end;
UpdateBtnStates;
end;
procedure TLifeTableForm.NoCensoredOutBtnClick(Sender: TObject);
begin
if NoCensoredEdit.Text <> '' then
begin
VarList.Items.Add(NoCensoredEdit.Text);
NoCensoredEdit.Text := '';
end;
UpdateBtnStates;
end;
procedure TLifeTableForm.NoDiedInBtnClick(Sender: TObject);
var
index: integer;
begin
index := VarList.ItemIndex;
if (index > -1) and (NoDiedEdit.Text = '') then
begin
NoDiedEdit.Text := VarList.Items[index];
VarList.Items.Delete(index);
end;
UpdateBtnStates;
end;
procedure TLifeTableForm.NoDiedOutBtnClick(Sender: TObject);
begin
if NoDiedEdit.Text <> '' then
begin
VarList.Items.Add(NoDiedEdit.Text);
NoDiedEdit.Text := '';
end;
UpdateBtnStates;
end;
procedure TLifeTableForm.AliveInBtnClick(Sender: TObject);
var
index: integer;
begin
index := VarList.ItemIndex;
if (index > -1) and (NoAliveEdit.Text = '') then
begin
NoAliveEdit.Text := VarList.Items[index];
VarList.Items.Delete(index);
end;
UpdateBtnStates;
end;
procedure TLifeTableForm.AliveOutBtnClick(Sender: TObject);
begin
if NoAliveEdit.Text <> '' then
begin
VarList.Items.Add(NoAliveEdit.Text);
NoAliveEdit.Text := '';
end;
UpdateBtnStates;
end;
procedure TLifeTableForm.ComputeBtnClick(Sender: TObject);
var
i : integer;
varcols : IntDyneVec;
AtRisk, ProbDie, CumProbLive, StdErr, Up95, Low95 : double;
N, P, Q, mu, CI, z : double;
begin
if ObsStartEdit.Text = '' then
begin
MessageDlg('Observation Start not specified.', mtError, [mbOK], 0);
exit;
end;
if ObsEndEdit.Text = '' then
begin
MessageDlg('Observation End not specified.', mtError, [mbOK], 0);
exit;
end;
if NoAliveEdit.Text = '' then
begin
MessageDlg('Number Alive not specified.', mtError, [mbOK], 0);
exit;
end;
if NoDiedEdit.Text = '' then
begin
MessageDlg('Number Died not specified.', mtError, [mbOK], 0);
exit;
end;
if NoCensoredEdit.Text = '' then
begin
MessageDlg('Number Censored not specified.', mtError, [mbOK], 0);
exit;
end;
CI := StrToFloat(CIEdit.Text);
z := InverseZ(CI);
SetLength(varcols, 5);
for i := 1 to 5 do
begin
if (OS3MainFrm.DataGrid.Cells[i,0] = ObsStartEdit.Text) then varcols[0] := i;
if (OS3MainFrm.DataGrid.Cells[i,0] = ObsEndEdit.Text) then varcols[1] := i;
if (OS3MainFrm.DataGrid.Cells[i,0] = NoAliveEdit.Text) then varcols[2] := i;
if (OS3MainFrm.DataGrid.Cells[i,0] = NoDiedEdit.Text) then varcols[3] := i;
if (OS3MainFrm.DataGrid.Cells[i,0] = NoCensoredEdit.Text) then varcols[4] := i;
end;
for i := 1 to NoCases do
begin
Grid.Cells[0,i] := 'CASE ' + IntToStr(i);
Grid.Cells[1,i] := Trim(OS3MainFrm.DataGrid.Cells[varcols[0],i]);
Grid.Cells[2,i] := Trim(OS3MainFrm.DataGrid.Cells[varcols[1],i]);
Grid.Cells[3,i] := Trim(OS3MainFrm.DataGrid.Cells[varcols[2],i]);
Grid.Cells[4,i] := Trim(OS3MainFrm.DataGrid.Cells[varcols[3],i]);
Grid.Cells[5,i] := Trim(OS3MainFrm.DataGrid.Cells[varcols[4],i]);
end;
for i := 1 to NoCases do
begin
AtRisk := StrToFloat(Grid.Cells[3,i]);
AtRisk := AtRisk - (StrToFloat(Grid.Cells[5,i]) / 2.0);
Grid.Cells[6,i] := Format('%.4f', [AtRisk]);
ProbDie := StrToFloat(Grid.Cells[4,i]) / AtRisk;
Grid.Cells[7,i] := Format('%.4f', [ProbDie]);
Grid.Cells[8,i] := Format('%.4f', [1.0-ProbDie]);
end;
N := StrToFloat(Grid.Cells[3,1]);
Grid.Cells[9,1] := Grid.Cells[8,1];
P := StrToFloat(Grid.Cells[9,1]);
Q := 1.0 - P;
StdErr := sqrt(N * P * Q);
Grid.Cells[10,1] := format('%.4f', [StdErr]);
mu := N * P;
Grid.Cells[10,1] := Format('%.4f', [StdErr]);
Up95 := mu + z * StdErr;
Low95 := mu - z * StdErr;
Grid.Cells[11,1] := Format('%.4f', [Low95]);
Grid.Cells[12,1] := Format('%.4f', [Up95]);
for i := 2 to NoCases do
begin
CumProbLive := StrToFloat(Grid.Cells[9,i-1]) * StrToFloat(Grid.Cells[8,i]);
Grid.Cells[9,i] := Format('%.4f', [CumProbLive]);
P := CumProbLive;
Q := 1.0 - P;
StdErr := sqrt(N * P * Q);
mu := N * P;
Grid.Cells[10,i] := Format('%.4f', [StdErr]);
Up95 := mu + z * StdErr;
Low95 := mu - z * StdErr;
Grid.Cells[11,i] := Format('%.4f', [Low95]);
Grid.Cells[12,i] := Format('%.4f', [Up95]);
end;
varcols := nil;
end;
procedure TLifeTableForm.ObsEndInBtnClick(Sender: TObject);
var
index: integer;
begin
index := VarList.ItemIndex;
if (index > -1) and (OBsEndEdit.Text = '') then
begin
ObsEndEdit.Text := VarList.Items[index];
VarList.Items.Delete(index);
end;
UpdateBtnStates;
end;
procedure TLifeTableForm.ObsEndOutBtnClick(Sender: TObject);
begin
if ObsEndEdit.Text <> '' then
begin
VarList.Items.Add(ObsEndEdit.Text);
ObsEndEdit.Text := '';
end;
UpdateBtnStates;
end;
procedure TLifeTableForm.ObsStartInBtnClick(Sender: TObject);
var
index: integer;
begin
index := VarList.ItemIndex;
if (index > -1) and (ObsStartEdit.Text = '') then
begin
ObsStartEdit.Text := VarList.Items[index];
VarList.Items.Delete(index);
end;
UpdateBtnStates;
end;
procedure TLifeTableForm.ObsStartOutBtnClick(Sender: TObject);
begin
if ObsStartEdit.Text <> '' then
begin
VarList.Items.Add(ObsStartEdit.Text);
ObsStartEdit.Text := '';
end;
UpdateBtnStates;
end;
procedure TLifeTableForm.ResetBtnClick(Sender: TObject);
VAR i : integer;
j : integer;
begin
// outline := format('NoCases = %d',[NoCases]);
// ShowMessage(outline);
// outline := format('No.Variables = %d',[NoVariables]);
// ShowMessage(outline);
VarList.Clear;
ObsStartEdit.Text := '';
ObsEndEdit.Text := '';
NoAliveEdit.Text := '';
NoDiedEdit.Text := '';
NoCensoredEdit.Text := '';
Grid.RowCount := NoCases+1;
Grid.ColCount := 13;
Grid.Cells[1,0] := 'Obs.Start';
Grid.Cells[2,0] := 'Obs.End';
Grid.Cells[3,0] := 'Alive';
Grid.Cells[4,0] := 'Died';
Grid.Cells[5,0] := 'Censored';
Grid.Cells[6,0] := 'At Risk';
Grid.Cells[7,0] := 'Prob.Die';
Grid.Cells[8,0] := 'Prob.Alive';
Grid.Cells[9,0] := 'Cum.P.Alive';
Grid.Cells[10,0] := 'S.E. Alive';
Grid.Cells[11,0] := 'Low 95%';
Grid.Cells[12,0] := 'Hi 95%';
for i := 0 to 12 do
for j := 1 to NoCases do Grid.Cells[i,j] := '';
for i := 1 to NoVariables do
VarList.Items.Add(OS3MainFrm.DataGrid.Cells[i,0]);
UpdateBtnStates;
end;
procedure TLifeTableForm.VarListSelectionChange(Sender: TObject; User: boolean);
begin
UpdateBtnStates;
end;
procedure TLifeTableForm.UpdateBtnStates;
begin
ObsStartInBtn.Enabled := (VarList.ItemIndex > -1) and (ObsStartEdit.Text = '');
ObsEndInBtn.Enabled := (VarList.ItemIndex > -1) and (ObsEndEdit.Text = '');
AliveInBtn.Enabled := (VarList.ItemIndex > -1) and (NoAliveEdit.Text = '');
NoDiedInBtn.Enabled := (VarList.itemIndex > -1) and (NoDiedEdit.Text = '');
NoCensoredInBtn.Enabled := (VarList.ItemIndex > -1) and (NoCensoredEdit.Text = '');
ObsStartOutBtn.Enabled := (ObsStartEdit.Text <> '');
ObsEndOutBtn.Enabled := (ObsEndEdit.Text > '');
AliveOutBtn.Enabled := (NoAliveEdit.Text <> '');
NoDiedOutBtn.Enabled := (NoDiedEdit.Text <> '');
NoCensoredOutBtn.Enabled := (NoCensoredEdit.Text > '');
end;
initialization
{$I lifetableunit.lrs}
end.