d9r1.txt

来自「本书共有数值计算中常用的VisualBasic子过程近200个」· 文本 代码 · 共 34 行

Private Sub Command1_Click()
    'PROGRAM D9R1
    'Driver for routine FIT
    NPT = 100
    SPREAD = 0.5
    Dim X(100), Y(100), SIG(100)
    IDUM& = -117
    For I = 1 To NPT
        X(I) = 0.1 * I
        Y(I) = -2# * X(I) + 1# + SPREAD * GASDEV(IDUM&)
        SIG(I) = SPREAD
    Next
    For MWT = 0 To 1
        Call FIT(X(), Y(), NPT, SIG(), MWT, A, B, SIGA, SIGB, CHI2, Q)
        If MWT = 0 Then
            Print
            Print Tab(5); "Ignoring standard deviation"
            Print
        Else
            Print
            Print Tab(5); "Including standard deviation"
            Print
        End If
        Print Tab(5); "A =  "; Format$(A, "##.#####0"),
        Print "Uncertainty: "; Format$(SIGA, "##.#####0")
        Print
        Print Tab(5); "B = "; Format$(B, "##.#####0"),
        Print "Uncertainty: "; Format$(SIGB, "##.#####0")
        Print
        Print Tab(5); "Chi-squared:  "; Format$(CHI2, "##.#####0")
        Print
        Print Tab(5); "Goodness-of-fit:  "; Format$(Q, "##.000000")
    Next MWT
End Sub