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用月计算,月的一部分

[英]calculate with month, part of months

我需要的是计算一个月内的可用性(WTF),并将其除以所选月份中的每月天数。

公式应为:WTF /一个月的总天数*一个月的可用天数=结果

例如:

period: 07-09-2017 - 15-11-2017
WTF: 0.5

应导致:

September: 0,4000
October:   0,5000
November:  0,2500

我的问题是,当此期间超过2个月时,如何计算结果。 我无法弄清楚如何计算第一个月和上个月之间的月份的结果,因此在这种情况下为十月份。

这是一些入门的代码。 它以一个字符串输出值,但是您可以轻松地将其输出到三个不同的单元格:

Public Function OutputWork(first As Date, last As Date, wtf As Double)
    Dim worked As Object, total As Object
    Dim i As Date
    Dim j As Long
    Dim mnth As String, key As String
    Dim v As Variant

    Set worked = CreateObject("Scripting.Dictionary")
    Set total = CreateObject("Scripting.Dictionary")

    For i = WorksheetFunction.EoMonth(first, -1) + 1 To WorksheetFunction.EoMonth(last, 0)
        mnth = Format(i, "mmmm")
        If Not total.exists(mnth) Then
            total.Add key:=mnth, Item:=1
        Else: total.Item(mnth) = total.Item(mnth) + 1
        End If

        If Not worked.exists(mnth) Then worked.Add key:=mnth, Item:=0
        If i >= first And i <= last Then worked.Item(mnth) = worked.Item(mnth) + 1
    Next i

    ReDim v(LBound(total.keys()) To UBound(total.keys()))
    For j = LBound(v) To UBound(v)
        key = total.keys()(j)
        v(j) = key & ":" & wtf / total.Item(key) * worked.Item(key)
    Next j

    OutputWork = Join(v, ", ")
End Function

使用工作表上的函数,如下所示:

=OutputWork(<start>,<end>,<WTF>)

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