calculs.pas

Mathematic Method,(mindres carées) delphi, with help

unit Calculs;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  Db, Menus, Grids, DBGrids, DBTables, StdCtrls, ExtCtrls, TeEngine,
  Series, TeeProcs, Chart, DBChart, TeeFunci;

type
  TForm3 = class(TForm)
    DataSource1: TDataSource;
    DBGrid1: TDBGrid;
    MainMenu1: TMainMenu;
    Fichier1: TMenuItem;
    Quitter1: TMenuItem;
    Button1: TButton;
    Panel1: TPanel;
    Button2: TButton;
    Button4: TButton;
    Label1: TLabel;
    Label2: TLabel;
    MX: TEdit;
    MY: TEdit;
    Label3: TLabel;
    VX: TEdit;
    Label4: TLabel;
    Edit4: TEdit;
    Label5: TLabel;
    CVXY: TEdit;
    Label6: TLabel;
    Label7: TLabel;
    Label8: TLabel;
    Label9: TLabel;
    Label10: TLabel;
    Label11: TLabel;
    Label12: TLabel;
    Label13: TLabel;
    Label14: TLabel;
    XS: TEdit;
    YS: TEdit;
    Label15: TLabel;
    Label16: TLabel;
    Ea: TEdit;
    Label17: TLabel;
    Label18: TLabel;
    Eb: TEdit;
    Label19: TLabel;
    Label20: TLabel;
    Er: TEdit;
    Label21: TLabel;
    Label22: TLabel;
    Er2: TEdit;
    TabDroi: TTable;
    TabDroiX: TFloatField;
    TabDroiY: TFloatField;
    DBChart1: TDBChart;
    Series1: TPointSeries;
    Series2: TFastLineSeries;
    ModifierLaTable1: TMenuItem;
    Quitter2: TMenuItem;
    procedure Quitter1Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure ModifierLaTable1Click(Sender: TObject);
    procedure Quitter2Click(Sender: TObject);
  private
    { D閏larations priv閑s }
  public
    { D閏larations publiques }
    a,b:Extended;
  end;

var
  Form3: TForm3;
  i:integer; S:String[20];
  MOX,MOY,VARX,VARY,MOX2,MOY2,MOXY,COVXY,SX,SY,r,r2,Min,Max:Extended;
implementation

uses  Traitment;

{$R *.DFM}

procedure TForm3.Quitter1Click(Sender: TObject);
begin
Button1Click(Sender);
end;

procedure TForm3.Button1Click(Sender: TObject);
Var N:integer;
begin
i:=1; MOX:=0;MOY:=0;MOX2:=0;MOY2:=0;MOXY:=0;
N:=Form2.TabPrin.RecordCount;Min:=0;Max:=0;

Form2.TabPrin.First;
For i:=1 to N do
Begin
MOX:=MOX+(Form2.TabPrinX.Value/N);
Form2.TabPrin.Next;
end;
MX.Text:=Formatfloat('0.00',MOX);
MOX:=strtofloat(MX.Text);

Form2.TabPrin.First;
For i:=1 to N do
begin
MOY:=MOY+(Form2.TabPrinY.Value/N);
Form2.TabPrin.Next;
end;
MY.Text:=Formatfloat('0.00',MOY);
MOY:=strtofloat(MY.text);

Form2.TabPrin.First;
For i:=1 to N do
begin
MOX2:=MOX2 + (Form2.TabPrinX2.Value/N);
Form2.TabPrin.Next;
end;

Form2.TabPrin.First;
For i:=1 to N do
begin
MOY2:=MOY2 + (Form2.TabPrinY2.Value/N);
Form2.TabPrin.Next;
end;

Form2.TabPrin.First;
For i:=1 to N do
begin
MOXY:=MOXY + (Form2.TabPrinXY.Value/N);
Form2.TabPrin.Next;
end;

VARX:=MOX2-sqr(MOX);
VX.Text:=Formatfloat('0.00',VARX);
VARX:=strtofloat(VX.Text);
VARY:=MOY2-sqr(MOY);
edit4.Text:=Formatfloat('0.00',VARY);

COVXY:=MOXY - (MOX*MOY);
CVXY.Text:=Formatfloat('0.00',COVXY);
COVXY:=strtofloat(CVXY.Text);

SX:=sqrt(VARX);
XS.Text:=Formatfloat('0.00',SX);
SX:=strtofloat(XS.Text);

SY:=sqrt(VARY);
YS.Text:=Formatfloat('0.00',SY);
SY:=strtofloat(YS.Text);

a:=COVXY/VARX;
Ea.Text:=Formatfloat('0.00',a);
a:=strtofloat(Ea.Text);

b:=MOY - (a*MOX);
Eb.Text:=Formatfloat('0.00',b);
b:=strtofloat(Eb.text);

r:=COVXY/(SX*SY);
Er.Text:=Formatfloat('0.00',r);
r:=strtofloat(Er.Text);

r2:=sqr(r)  ;
Er2.Text:=Formatfloat('0.00',r2);
r2:=strtofloat(Er2.Text);

Form2.TabPrin.First;
Min:=Form2.TabPrinX.Value;
For i:=1 to N do
Begin
if Min >= Form2.TabPrinX.Value then Min:=Form2.TabPrinX.Value;
Form2.TabPrin.Next;
end;

Form2.TabPrin.First;
Max:=Form2.TabPrinX.Value;
For i:=1 to N do
Begin
if Max <= Form2.TabPrinX.Value then Max:=Form2.TabPrinX.Value;
Form2.TabPrin.Next;
end;

TabDroi.First;
TabDroi.Edit;
TabDroiX.Value:=Min;
TabDroiY.Value:=(a*TabDroiX.Value)+b;
TabDroi.Next;
TabDroi.Edit;
TabDroiX.Value:=Max;
TabDroiY.Value:=(a*TabDroiX.Value)+b;

Form2.TabPrin.First;
DBChart1.RefreshData;
end;

procedure TForm3.Button2Click(Sender: TObject);
begin
Close;
end;

procedure TForm3.Button4Click(Sender: TObject);
begin
Form2.Show;
end;

procedure TForm3.ModifierLaTable1Click(Sender: TObject);
begin
Form2.Show;
end;

procedure TForm3.Quitter2Click(Sender: TObject);
begin
Close;
end;

end.