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git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@8048 8e941d3f-bd1b-0410-a28a-d453659cc2b4
98 lines
1.8 KiB
ObjectPascal
98 lines
1.8 KiB
ObjectPascal
unit tProbUnit;
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{$mode objfpc}{$H+}
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interface
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uses
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Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs,
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StdCtrls, ExtCtrls;
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type
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{ TTProbForm }
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TTProbForm = class(TForm)
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Bevel1: TBevel;
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CancelBtn: TButton;
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Panel1: TPanel;
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tValueEdit: TEdit;
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ComputeBtn: TButton;
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DFEdit: TEdit;
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Label1: TLabel;
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Label2: TLabel;
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Label3: TLabel;
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ProbEdit: TEdit;
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ResetBtn: TButton;
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ReturnBtn: TButton;
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procedure ComputeBtnClick(Sender: TObject);
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procedure FormActivate(Sender: TObject);
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procedure ResetBtnClick(Sender: TObject);
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private
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{ private declarations }
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public
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{ public declarations }
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end;
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var
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TProbForm: TTProbForm;
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implementation
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{$R *.lfm}
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uses
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Math, MathUnit, Utils;
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{ TTProbForm }
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procedure TTProbForm.ResetBtnClick(Sender: TObject);
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begin
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tValueEdit.Text := '';
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DFEdit.Text := '';
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ProbEdit.Text := '';
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end;
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procedure TTProbForm.ComputeBtnClick(Sender: TObject);
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var
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tvalue, prob: double;
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dfValue: Integer;
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begin
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if not MyTryStrToFloat(tValueEdit.Text, tvalue) then
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begin
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tValueEdit.SetFocus;
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ErrorMsg('No valid number.');
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exit;
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end;
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if not TryStrToInt(DFEdit.Text, dfValue) then
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begin
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dfEdit.SetFocus;
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ErrorMsg('Not a valid integer (must be positive).');
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exit;
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end;
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if tvalue >= 0.0 then
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prob := 0.5 * ProbT(tvalue, dfvalue)
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else if tvalue < 0.0 then
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prob := 1.0 - ProbT(tvalue, dfvalue) + (0.5 *ProbT(tvalue, dfvalue))
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else
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prob := 0.50;
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ProbEdit.Text := Format('%6.4f', [prob]);
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end;
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procedure TTProbForm.FormActivate(Sender: TObject);
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var
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w: Integer;
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begin
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w := MaxValue([CancelBtn.Width, ResetBtn.Width, ComputeBtn.Width, ReturnBtn.Width]);
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CancelBtn.Constraints.MinWidth := w;
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ResetBtn.Constraints.MinWidth := w;
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ComputeBtn.Constraints.MinWidth := w;
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ReturnBtn.Constraints.MinWidth := w;
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end;
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end.
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