频数f4.frm

<VB数理统计实用算法>书中的算法源程序

VERSION 5.00
Begin VB.Form frmParameter 
   Appearance      =   0  'Flat
   BackColor       =   &H80000005&
   Caption         =   "显示自动分段参数"
   ClientHeight    =   1335
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   4815
   BeginProperty Font 
      Name            =   "宋体"
      Size            =   14.25
      Charset         =   134
      Weight          =   400
      Underline       =   0   'False
      Italic          =   0   'False
      Strikethrough   =   0   'False
   EndProperty
   LinkTopic       =   "Form1"
   ScaleHeight     =   1335
   ScaleWidth      =   4815
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton cmdOK 
      Caption         =   "确定"
      Height          =   375
      Left            =   3240
      TabIndex        =   0
      Top             =   840
      Width           =   975
   End
   Begin VB.TextBox Text3 
      Appearance      =   0  'Flat
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   270
      Left            =   2040
      TabIndex        =   7
      Top             =   960
      Width           =   855
   End
   Begin VB.TextBox Text2 
      Appearance      =   0  'Flat
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   270
      Left            =   2040
      TabIndex        =   5
      Top             =   720
      Width           =   855
   End
   Begin VB.TextBox Text1 
      Appearance      =   0  'Flat
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   270
      Left            =   2040
      TabIndex        =   3
      Top             =   480
      Width           =   855
   End
   Begin VB.Label Label4 
      Alignment       =   1  'Right Justify
      Appearance      =   0  'Flat
      BackColor       =   &H80000005&
      Caption         =   "分段的终止值："
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H80000008&
      Height          =   255
      Left            =   240
      TabIndex        =   6
      Top             =   960
      Width           =   1695
   End
   Begin VB.Label Label3 
      Alignment       =   1  'Right Justify
      Appearance      =   0  'Flat
      BackColor       =   &H80000005&
      Caption         =   "分段的起始值："
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H80000008&
      Height          =   255
      Left            =   240
      TabIndex        =   4
      Top             =   720
      Width           =   1695
   End
   Begin VB.Label Label2 
      Alignment       =   1  'Right Justify
      Appearance      =   0  'Flat
      BackColor       =   &H80000005&
      Caption         =   "分段数："
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H80000008&
      Height          =   255
      Left            =   240
      TabIndex        =   2
      Top             =   480
      Width           =   1695
   End
   Begin VB.Label Label1 
      Alignment       =   2  'Center
      Appearance      =   0  'Flat
      BackColor       =   &H80000005&
      Caption         =   "程序将按下列参数分段，您可以根据需要调整"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H80000008&
      Height          =   255
      Left            =   120
      TabIndex        =   1
      Top             =   120
      Width           =   4455
   End
End
Attribute VB_Name = "frmParameter"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
'参数窗体
Option Explicit
Dim I As Integer, J As Integer

Private Sub Form_Load()
    Dim intMN As Integer
    intMN = intRow * intCol                 '原始数据点数
'自动计算段数
'intZone为段数，一般来说，平均每段不少于5个数据
    If intMN > 500 Then
        intZone = intMN \ 100
    ElseIf intMN > 200 Then
        intZone = intMN \ 40
    ElseIf intMN > 100 Then
        intZone = intMN \ 20
    ElseIf intMN > 50 Then
        intZone = intMN \ 10
    ElseIf intMN < 10 Then
        MsgBox "样本数小于10，无法计算！可修改源程序"
        Unload Me
        End
    Else
        intZone = intMN \ 5
    End If
'可以由用户提供分段数
'求最小值
    Min = P(1, 1): Max = P(1, 1)
    For I = 1 To intRow
        For J = 1 To intCol
            If P(I, J) < Min Then Min = P(I, J)
            If P(I, J) > Max Then Max = P(I, J)
        Next J
    Next I
    Text1.Text = Str(intZone)       '分段数
    Text2.Text = Str(Min)           '分段起始值
    Text3.Text = Str(Max)           '分段终止值
End Sub

'确定
Private Sub cmdOK_Click()
    intZone = Val(Text1.Text)       '分段数
    Min = Val(Text2.Text)           '分段起始值
    Max = Val(Text3.Text)           '分段终止值
    Unload Me
    frmCalculate.Visible = True
End Sub