'Начало описания
'Данный скрипт рисует графики вероятностных распределений: нормального, биномиального, хи-квадрат;
'Пользователь задаёт число степеней свободы и т.д. Типы графиков и подписи могут
'быть дополнительно настроены из диалогового окна. Скрипт кое-как контролирует вводимые значения
'(знаки и пределы вводимых значений), но пока здесь не реализована проверка против запросов графиков
'с числом категорий, большим, чем SPSS может отобразить: 3000.
'
'Создан 27.09.1998, автор Rolf Kjшller (rolf.kjoeller@get2net.dk) .
'Конец описания

Option Explicit
'Для локализованных версий Windows, использующих запятую (,)
'вместо точки (.) в качестве десятичного разделителя,
'измените значение в следующей строке с False на True
Const DECIMAL_COMMA As Boolean = False
Global strMacrocall As String
Global booInputIsOK As Boolean
Global strMainTitle As String
Global strSubTitle As String
Global intChartType As Integer

Sub Main
	Dim blnOverwriteWarning As Boolean

	If SPSSVersion8 Then
		'не даём предупреждения в версиях, выше 7.5, если
		'текущий файл данных не был изменён со времени последнего сохранения
		blnOverwriteWarning = objSpssApp.Documents.GetDataDoc(0).Modified
	Else
		'в ранних версиях можно проинсталлировать код query.sbs чтобы проверять это
		blnOverwriteWarning = True
	End If
	If blnOverwriteWarning Then
		If vbCancel = MsgBox ("Текущий файл данных будет заменён!  Продолжить?", _
				vbExclamation + vbOkCancel) Then
			Exit Sub
		End If
	End If

	Call MainDialog
 End Sub

Sub MainDialog
	Dim distributions$(3)
	distributions$(1)="Нормальное"
	distributions$(2)="Биномиальное"
	distributions$(3)="Хи-квадрат"
	Dim stepvalues$(6)
	stepvalues$(1)="1"
	stepvalues$(2)="0.5"
	stepvalues$(3)="0.1"
	stepvalues$(4)="0.05"
	stepvalues$(5)="0.01"
	stepvalues$(6)="0.005"
	Begin Dialog UserDialog 420,140,"Графики вероятностных распределений",.RunMainDialog
		Text 30,7,220,21,"Распределение:",.maintext
		OKButton 290,20,100,20,.cmdOK
		CancelButton 290,50,100,20,.cmdCancel
		DropListBox 30,20,225,77,distributions(),.distribution
		Text 30,50,140,21,"Среднее:",.meantext
		TextBox 210,50,45,20,.mean
		Text 30,75,140,20,"Стд. отклонение:",.stdevtext
		TextBox 210,75,45,20,.stdev
		Text 30,100,140,21,"Шаг вычисления:",.stepvaluetext
		ListBox 185,100,70,28,stepvalues(),.stepvalue
		Text 30,50,140,21,"Число попыток n:",.ntext
		TextBox 210,50,45,20,.n
		Text 30,75,140,20,"Вероятность успеха:",.Probtext
		TextBox 210,75,45,20,.Prob
		Text 30,50,140,20,"Число ст. свободы:",.dfstext
		TextBox 210,50,45,20,.dfs
		PushButton 290,100,100,20,"Настройки ...",.cmdOptions
	End Dialog
	Dim MainDlg As UserDialog
	Dialog MainDlg
End Sub

Sub OptionsDialog
	Begin Dialog UserDialog 480,140,"Графики вероятностных распределений: Настройки",.RunOptionsDialog
		Text 30,7,140,20,"Заголовки:",.Title
		PushButton 290,20,100,20,"Продолжить",.cmdContinue
		TextBox 30,20,230,20,.MainTitle
		TextBox 30,50,230,20,.Subtitle
		OptionGroup.ChartType
			OptionButton 30,100,120,20,"Линейный",.OptionButton1
			OptionButton 160,100,120,20,"С областями",.OptionButton2
			OptionButton 290,100,120,20,"Столбиковый",.OptionButton3
		Text 30,87,90,14,"График:",.Text1
	End Dialog
	Dim OptionsDlg As UserDialog
	Dialog OptionsDlg
End Sub


Private Function RunMainDialog(DlgItem As String, Action As Integer, SuppValue As Integer) As Boolean
	Select Case Action
	Case 1 'Инициализация диалогового окна
		DlgVisible "meantext",True
		DlgVisible "mean",True
		DlgVisible "stdevtext",True
		DlgVisible "stdev",True
		DlgVisible "stepvaluetext",True
		DlgVisible "stepvalue",True
		DlgVisible "dfstext",False
		DlgVisible "dfs",False
		DlgVisible "ntext",False
		DlgVisible "n",False
		DlgVisible "Probtext",False
		DlgVisible "Prob",False
		DlgValue "stepvalue",2
		DlgFocus "distribution"
		strMainTitle="Нормальное расрпеделение"
		strSubTitle="Среднее=" + DlgText("mean") + ", стд. отклонение=" + DlgText("stdev")
		intChartType=0
	Case 2 'Изменение значения или нажатие кнопки
		Select Case DlgItem
		Case "distribution"
			Select Case SuppValue
			Case 0
				DlgVisible "meantext",True
				DlgVisible "mean",True
				DlgVisible "stdevtext",True
				DlgVisible "stdev",True
				DlgVisible "ntext",False
				DlgVisible "n",False
				DlgVisible "Probtext",False
				DlgVisible "Prob",False
				DlgVisible "dfstext",False
				DlgVisible "dfs",False
				DlgVisible "stepvaluetext",True
				DlgVisible "stepvalue",True
				strMainTitle="Нормальное распределение"
				strSubTitle="Среднее=" + DlgText("mean") + ", стд. отклонение=" + DlgText("stdev")
				intChartType=0
			Case 1
				DlgVisible "meantext",False
				DlgVisible "mean",False
				DlgVisible "stdevtext",False
				DlgVisible "stdev",False
				DlgVisible "ntext",True
				DlgVisible "n",True
				DlgVisible "Probtext",True
				DlgVisible "Prob",True
				DlgVisible "dfstext",False
				DlgVisible "dfs",False
				DlgVisible "stepvaluetext",False
				DlgVisible "stepvalue",False
				strMainTitle="Биномиальное распределение"
				strSubTitle="n=" + DlgText("n") + ", вероятность=" + DlgText("Prob")
				intChartType=2
			Case 2
				DlgVisible "meantext",False
				DlgVisible "mean",False
				DlgVisible "stdevtext",False
				DlgVisible "stdev",False
				DlgVisible "ntext",False
				DlgVisible "n",False
				DlgVisible "Probtext",False
				DlgVisible "Prob",False
				DlgVisible "dfstext",True
				DlgVisible "dfs",True
				DlgVisible "stepvaluetext",True
				DlgVisible "stepvalue",True
				strMainTitle="Распределение хи-квадрат"
				strSubTitle="df=" + DlgText("dfs")
				intChartType=0
			End Select
		Case "cmdOK"
			strMainTitle="'" + strMainTitle + "'"
			strSubTitle="'" + strSubTitle + "'"
			Select Case DlgText("distribution")
			Case "Нормальное"
				Call CheckInput (DlgText("mean"), DlgText("stdev"))
				If booInputIsOK Then
					Call BuildMacroCall (DlgText("mean"), DlgText("stdev"))
					Call plot
					RunMainDialog = False
				Else
					RunMainDialog = True
				End If
			Case "Биномиальное"
				Call CheckInput (DlgText("n"), DlgText("Prob"))
				If booInputIsOK Then
					Call BuildMacroCall (DlgText("n"), DlgText("Prob"))
					Call plot
					RunMainDialog = False
				Else
					RunMainDialog = True
				End If
			Case "Хи-квадрат"
				Call CheckInput (DlgText("dfs"))
				If booInputIsOK Then
				Call BuildMacroCall (DlgText("dfs"))
					Call plot
					RunMainDialog = False
				Else
					RunMainDialog = True
				End If
			End Select
		Case "cmdCancel"
	   		End
		Case "cmdOptions"
			Call OptionsDialog
			RunMainDialog = True
		End Select
	Case 3 'Изменено значение в текстовых полях или списке
		Select Case DlgItem
		Case "mean"
			strMainTitle="Нормальное распределение"
			strSubTitle="Среднее=" + DlgText("mean") + ", стд. отклонение=" + DlgText("stdev")
			intChartType=0
		Case "stdev"
			strMainTitle="Нормальное распределение"
			strSubTitle="Среднее=" + DlgText("mean") + ", стд. отклонение=" + DlgText("stdev")
			intChartType=0
		Case "n"
			strMainTitle="Биномиальное распределение"
			strSubTitle="n=" + DlgText("n") + ", вероятность=" + DlgText("Prob")
			intChartType=2
		Case "Prob"
			strMainTitle="Биномиальное распределение"
			strSubTitle="n=" + DlgText("n") + ", вероятность=" + DlgText("Prob")
			intChartType=2
		Case "dfs"
			strMainTitle="Распределение хи-квадрат"
			strSubTitle="df=" + DlgText("dfs")
			intChartType=0
		End Select
	Case 4 'Изменение фокуса
	Case 5 'Зарезервировано
	End Select
End Function

Private Function RunOptionsDialog(DlgItem As String, Action As Integer, SuppValue As Integer) As Boolean
	Select Case Action
	Case 1 'Инициализация диалогового окна
		DlgText "MainTitle", strMainTitle
		DlgText "SubTitle", strSubTitle
		DlgValue "ChartType", intChartType
	Case 2 'Изменено значение или нажата кнопка
		Select Case DlgItem
		Case "cmdContinue"
			strMainTitle=DlgText("MainTitle")
			strSubTitle=DlgText("SubTitle")
			intChartType=DlgValue("ChartType")
	   		Exit Function
	   	End Select
	Case 3 'Изменено значение текстового поля или списка
	Case 4 'Изменение фокуса
	Case 5 'Зарезервировано
	End Select
End Function

Sub CheckInput (ParamArray InputValueList())
	Dim i As Integer
	Dim j As Integer
	booInputIsOK=False
	For j=0 To UBound(InputValueList)
		'***************************************
		'Первая проверка: является ли введённое значение числом?
		'***************************************
		If DECIMAL_COMMA Then
			'точки заменяются на запятые:
			For i=1 To Len(InputValueList(j))
				If Mid(InputValueList(j),i,1) = "." Then InputValueList(j)=Left(InputValueList(j),i-1)+","+Right(InputValueList(j),Len(InputValueList(j))-i)
			Next i
		End If
		booInputIsOK=IsNumeric(InputValueList(j))
		If Not booInputIsOK Then
			MsgBox "Поле ввода пусто, либо содержит нечисловые или множественные значения"
			Exit Sub
		End If
		'****************************************************
		'Вторая проверка: укладывается ли введённое значение в допустимый интервал?
		'****************************************************
		Select Case DlgText("distribution")
		Case "Нормальное"
	 		If j=1 Then
				booInputIsOK = (CDbl(InputValueList(j))>0)
				If Not booInputIsOK Then
					MsgBox "Стандартное отклонение должно быть больше 0"
					Exit Sub
				End If
			End If
		Case "Биномиальное"
			Select Case j
			Case 0
				booInputIsOK = (CDbl(InputValueList(j))>0 And CDbl(InputValueList(j))=Int(CDbl(InputValueList(j))))
				If Not booInputIsOK Then
					MsgBox "n должно быть больше 0"
					Exit Sub
				End If
			Case 1
				booInputIsOK = (CDbl(InputValueList(j))>=0 And CDbl(InputValueList(j))<=1)
				If Not booInputIsOK Then
					MsgBox "Вероятность должна находится в интервале от 0 до 1"
					Exit Sub
				End If
			End Select
		Case "Хи-квадрат"
			booInputIsOK = (CDbl(InputValueList(j))>0 And CDbl(InputValueList(j))=Int(CDbl(InputValueList(j))))
			If Not booInputIsOK Then
				MsgBox "Число степеней свободы должно быть положительным целым числом"
				Exit Sub
			End If
		End Select
	Next j
End Sub

Sub BuildMacroCall(ParamArray InputValueList())
	Dim i As Integer
	Dim j As Integer
	For j=0 To UBound(InputValueList)
		'запятые заменяются точками:
		For i=1 To Len(InputValueList(j))
			If Mid(InputValueList(j),i,1) = "," Then InputValueList(j)=Left(InputValueList(j),i-1)+"."+Right(InputValueList(j),Len(InputValueList(j))-i)
		Next i
	Next j
	Select Case DlgText("distribution")
	Case "Нормальное"
		strMacrocall="!norm mean=" + InputValueList(0) + " stdev=" + InputValueList(1) + " step=" + DlgText("stepvalue") + " ."
	Case "Биномиальное"
		strMacrocall="!bin n=" + InputValueList(0) + " p=" + InputValueList(1) + " ."
	Case "Хи-квадрат"
		strMacrocall="!chisq df=" + InputValueList(0) + " step=" + DlgText("stepvalue") + " ."
	End Select
End Sub

Sub plot
Dim strCommand As String
strCommand = strCommand + "SET ERRORS=OFF ." &vbCrLf
strCommand = strCommand + "/******************************************************************************" &vbCrLf
strCommand = strCommand + "/* Нормальное:" &vbCrLf
strCommand = strCommand + "/******************************************************************************" &vbCrLf
strCommand = strCommand + "DEFINE !norm (mean=!TOKENS(1) /stdev=!TOKENS(1) /step=!DEFAULT(0.05) !TOKENS(1)) ." &vbCrLf
strCommand = strCommand + "NEW FILE ." &vbCrLf
strCommand = strCommand + "INPUT PROGRAM ." &vbCrLf
strCommand = strCommand + "LOOP x=(-4*!stdev+!mean) TO (4*!stdev+!mean) BY !step ." &vbCrLf
strCommand = strCommand + "COMPUTE cpx=CDF.NORM(x,!mean,!stdev) ." &vbCrLf
strCommand = strCommand + "COMPUTE px=CDF.NORM(x,!mean,!stdev)-CDF.NORM(LAG(x),!mean,!stdev) ." &vbCrLf
strCommand = strCommand + "IF x EQ (-4*!stdev+!mean) px=cpx ." &vbCrLf
strCommand = strCommand + "END CASE ." &vbCrLf
strCommand = strCommand + "END LOOP ." &vbCrLf
strCommand = strCommand + "END FILE ." &vbCrLf
strCommand = strCommand + "END INPUT PROGRAM ." &vbCrLf
strCommand = strCommand + "EXECUTE ." &vbCrLf
strCommand = strCommand + "VARIABLE LABELS x 'Z' px 'p(z=Z)' cpx 'p(z<=Z)' ." &vbCrLf
strCommand = strCommand + "!ENDDEFINE ." &vbCrLf
strCommand = strCommand + "/******************************************************************************" &vbCrLf
strCommand = strCommand + "/* Биномиальное:" &vbCrLf
strCommand = strCommand + "/******************************************************************************" &vbCrLf
strCommand = strCommand + "DEFINE !bin (n=!TOKENS(1) /p=!TOKENS(1)) ." &vbCrLf
strCommand = strCommand + "NEW FILE ." &vbCrLf
strCommand = strCommand + "INPUT PROGRAM ." &vbCrLf
strCommand = strCommand + "LOOP x=0 TO !n BY 1 ." &vbCrLf
strCommand = strCommand + "COMPUTE cpx=CDF.BINOM(x,!n,!p) ." &vbCrLf
strCommand = strCommand + "COMPUTE px=CDF.BINOM(x,!n,!p)-CDF.BINOM(LAG(x),!n,!p) ." &vbCrLf
strCommand = strCommand + "IF x EQ 0 px=cpx ." &vbCrLf
strCommand = strCommand + "END CASE ." &vbCrLf
strCommand = strCommand + "END LOOP ." &vbCrLf
strCommand = strCommand + "END FILE ." &vbCrLf
strCommand = strCommand + "END INPUT PROGRAM ." &vbCrLf
strCommand = strCommand + "EXECUTE ." &vbCrLf
strCommand = strCommand + "FORMAT x (F4) ." &vbCrLf
strCommand = strCommand + "VARIABLE LABELS x 'X' px 'p(x=X)' cpx 'p(x<=X)' ." &vbCrLf
strCommand = strCommand + "!ENDDEFINE ." &vbCrLf
strCommand = strCommand + "/******************************************************************************" &vbCrLf
strCommand = strCommand + "/* Хи-квадрат:" &vbCrLf
strCommand = strCommand + "/******************************************************************************" &vbCrLf
strCommand = strCommand + "DEFINE !chisq (df=!TOKENS(1) /step=!TOKENS(1)) ." &vbCrLf
strCommand = strCommand + "NEW FILE ." &vbCrLf
strCommand = strCommand + "INPUT PROGRAM ." &vbCrLf
strCommand = strCommand + "LOOP x=0 TO 5*!df BY !step ." &vbCrLf
strCommand = strCommand + "COMPUTE cpx=CDF.CHISQ(x,!df) ." &vbCrLf
strCommand = strCommand + "COMPUTE px=CDF.CHISQ(x,!df)-CDF.CHISQ(LAG(x),!df) ." &vbCrLf
strCommand = strCommand + "IF x EQ 0 px=cpx ." &vbCrLf
strCommand = strCommand + "DO IF cpx GT 0.9999 ." &vbCrLf
strCommand = strCommand + "BREAK ." &vbCrLf
strCommand = strCommand + "END IF ." &vbCrLf
strCommand = strCommand + "END CASE ." &vbCrLf
strCommand = strCommand + "END LOOP ." &vbCrLf
strCommand = strCommand + "END FILE ." &vbCrLf
strCommand = strCommand + "END INPUT PROGRAM ." &vbCrLf
strCommand = strCommand + "EXECUTE ." &vbCrLf
strCommand = strCommand + "VARIABLE LABELS x 'Q' cpx 'p(q<=Q)' px 'p(q=Q)' ." &vbCrLf
strCommand = strCommand + "!ENDDEFINE ." &vbCrLf
strCommand = strCommand + "/******************************************************************************" &vbCrLf
strCommand = strCommand + "/* Plot:" &vbCrLf
strCommand = strCommand + "/******************************************************************************" &vbCrLf
strCommand = strCommand + "DEFINE !plot (type=!TOKENS(1)) ." &vbCrLf
strCommand = strCommand + "!IF (!type !EQ 0) !THEN ." &vbCrLf
strCommand = strCommand + "GRAPH" &vbCrLf
strCommand = strCommand + "/TITLE=" + strMainTitle &vbCrLf
strCommand = strCommand + "/SUBTITLE=" + strSubTitle &vbCrLf
strCommand = strCommand + "/LINE(SIMPLE)=VALUE(cpx) BY x ." &vbCrLf
strCommand = strCommand + "GRAPH" &vbCrLf
strCommand = strCommand + "/TITLE=" + strMainTitle &vbCrLf
strCommand = strCommand + "/SUBTITLE=" + strSubTitle &vbCrLf
strCommand = strCommand + "/LINE(SIMPLE)=VALUE(px) BY x ." &vbCrLf
strCommand = strCommand + "!IFEND ." &vbCrLf
strCommand = strCommand + "!IF (!type !EQ 1) !THEN ." &vbCrLf
strCommand = strCommand + "GRAPH" &vbCrLf
strCommand = strCommand + "/TITLE=" + strMainTitle &vbCrLf
strCommand = strCommand + "/SUBTITLE=" + strSubTitle &vbCrLf
strCommand = strCommand + "/LINE(AREA)=VALUE(cpx) BY x ." &vbCrLf
strCommand = strCommand + "GRAPH" &vbCrLf
strCommand = strCommand + "/TITLE=" + strMainTitle &vbCrLf
strCommand = strCommand + "/SUBTITLE=" + strSubTitle &vbCrLf
strCommand = strCommand + "/LINE(AREA)=VALUE(px) BY x ." &vbCrLf
strCommand = strCommand + "!IFEND ." &vbCrLf
strCommand = strCommand + "!IF (!type !EQ 2) !THEN ." &vbCrLf
strCommand = strCommand + "GRAPH" &vbCrLf
strCommand = strCommand + "/TITLE=" + strMainTitle &vbCrLf
strCommand = strCommand + "/SUBTITLE=" + strSubTitle &vbCrLf
strCommand = strCommand + "/BAR(SIMPLE)=VALUE(cpx) BY x ." &vbCrLf
strCommand = strCommand + "GRAPH" &vbCrLf
strCommand = strCommand + "/TITLE=" + strMainTitle &vbCrLf
strCommand = strCommand + "/SUBTITLE=" + strSubTitle &vbCrLf
strCommand = strCommand + "/BAR(SIMPLE)=VALUE(px) BY x ." &vbCrLf
strCommand = strCommand + "!IFEND ." &vbCrLf
strCommand = strCommand + "!ENDDEFINE ." &vbCrLf
strCommand = strCommand + "SET ERRORS=LISTING ." &vbCrLf
strCommand = strCommand + "/******************************************************************************" &vbCrLf
strCommand = strCommand + strMacrocall &vbCrLf
strCommand = strCommand + "!plot type=" + Str(intChartType) &vbCrLf
objSpssApp.ExecuteCommands strCommand , False
End Sub


Function SPSSVersion8 As Boolean
	'включаем обработчик ошибок
	On Error Resume Next
	'это вызовет ошибку в SPSS 7.5, в частности:
	'	Error 10091
	'	OLE Automation: no such property or method.
	objSpssApp.ScriptParameter(0)

	SPSSVersion8 = (Err = 0)

	'обнуляем объект ошибки, если что-то там есть
	Err.Clear
	'выключаем обработчик ошибок
	On Error GoTo 0
End Function