我希望创建一个每个键包含多个项目的字典。以下是我现在正在使用的代码。我花了7个多小时玩字典,我似乎无法弄明白。我的范围输入中的唯一值作为我的字典的键是没有问题的,当我想要为每个键添加项时问题就出现了。如果密钥已经存在,我希望对该密钥的项目进行SUM(或添加),或者增加" count"该密钥将存储在该密钥的另一个项目中。也许通过视觉效果来解释它。
Key Item1 Item2
PersonA 20 SomeOtherVal
PersonB 40 SomeOtherVal
PersonA 80 SomeOtherVal
PersonB 17 SomeOtherVal
PersonC 13 SomeOtherVal
Result:
Key Item1(Sum) Item2(Count)
PersonA 100 2
PersonB 57 2
PersonC 13 1
正如您所看到的,存在的所有唯一项都是作为自己的键创建的。如果密钥已存在,则将项目1添加到密钥的当前总计中,项目2具有计数并且增加1.以下是我正在使用的代码,我会提供帮助。
Sub dictionaryCreate()
Dim Pair As Variant
Dim q As Range
Dim RAWDATA As Range
Dim d As Dictionary 'Object
Set d = New Dictionary 'CreateObject("Scripting.Dictionary")
Set RAWDATA = Worksheets("RAW_DATA").Range(Cells(2, 1), Cells(3000, 1))
For Each q In RAWDATA
Pair = q.Offset(0, 60).Value + q.Offset(0, 65).Value
If d.Exists(Pair) Then
'ADD to item1 SUM
'Add to item2 COUNT
Else
d(Pair) = 1 'create new key
End If
Next
End Sub
答案 0 :(得分:7)
类对象是此任务的理想选择。一方面,您可以创建自己的数据字段,另一方面您可以添加更多功能(例如存储每个单独的项目或具有平均总和和计数的函数),最重要的是,您可以在字段上执行算术函数(例如作为补充)。
后者非常有用,因为原始数据类型无法在Collection
类型的对象中进行修改。例如,如果d(key) = d(key) + 1
中的项目是d
,那么您的代码Integer
中就不会有d(key)
。您必须将Collection
的值读入临时变量,将其递增1,删除旧值,然后添加新的临时变量(如果Collections
中的顺序为对你来说很重要的是你有一个更艰巨的任务)。但是,对象通过引用存储在这些类型的Collection
中,因此您可以将该对象的属性修改为您心中的内容。
您注意到我Dictionary
引用的Collection
超过Collection
。这是因为我认为您的要求更适合Runtime
:a)我注意到您的原始数据可能非常大(可能超过3000项),我相信添加到cItems
更快,b)你不会有引用Public Key As String
Public Sum As Long
Public Count As Long
Public ItemList As Collection
Public Function Mean() As Double
Mean = Sum / Count
End Function
Private Sub Class_Initialize()
Sum = 0
Count = 0
Set ItemList = New Collection
End Sub
库的麻烦。
下面是一个类对象的示例,其中包含一些附加函数,以向您展示它是如何工作的。您可以使用 Insert~>在编辑器中创建它。课程模块我在名称属性窗口中调用了此课程Dim col As Collection
Dim dataItems As cItems
Dim itemKey As String
Dim item1 As Long
Dim ws As Worksheet
Dim r As Long
Set ws = ThisWorkbook.Worksheets("RAW_DATA")
Set col = New Collection
For r = 2 To 3000
itemKey = CStr(ws.Cells(r, "A").Value2) '~~adjust to your own column(s)
item1 = CLng(ws.Cells(r, "B").Value2) '~~adjust to your own column(s)
'Check if key already exists
Set dataItems = Nothing: On Error Resume Next
Set dataItems = col(itemKey): On Error GoTo 0
'If key doesn't exist, create a new class object
If dataItems Is Nothing Then
Set dataItems = New cItems
dataItems.Key = itemKey
col.Add dataItems, itemKey
End If
'Add cell values to the class object
With dataItems
.Sum = .Sum + item1
.Count = .Count + 1
.ItemList.Add item1
End With
Next
:
'Iterating through all of the items
For Each dataItems In col
Debug.Print dataItems.Mean
Next
'Selecting one item
Set dataItems = col("PersonA")
Debug.Print dataItems.Mean
然后,您将在主模块中将项目添加到您的集合中,如下所示:
NodeSLList & operator=(NodeSLList &list)
如果您想访问任何或所有项目,请执行以下操作:
list2
答案 1 :(得分:3)
我使用一种方法将多个值连接到一个.Item
,并且遇到很少遇到的分隔符。可以拆分.Item
并在构造字典时调整其元素。
Sub dictionaryCreate()
Dim rw As Long, vITM As Variant, vKEY As Variant
Dim d As New Dictionary ' or Object & CreateObject("Scripting.Dictionary")
d.CompareMode = vbTextCompare
With Worksheets("RAW_DATA")
For rw = 2 To 3000 'maybe this ~> .Cells(Rows.Count, 1).End(xlUp).Row
If d.Exists(.Cells(rw, 1).Value2) Then
vITM = Split(d.Item(.Cells(rw, 1).Value2), ChrW(8203))
d.Item(.Cells(rw, 1).Value2) = _
Join(Array(vITM(0) + .Cells(rw, 2).Value2, vITM(1) + 1), ChrW(8203)) 'modify and join on a zero-width space
Else
d.Add Key:=.Cells(rw, 1).Value2, _
Item:=Join(Array(.Cells(rw, 2).Value2, 1), ChrW(8203)) 'join on a zero-width space
End If
Next rw
End With
Debug.Print "key" & Chr(9) & "sum" & Chr(9) & "count"
For Each vKEY In d.Keys
Debug.Print vKEY & Chr(9) & _
Split(d.Item(vKEY), ChrW(8203))(0) & Chr(9) & _
Split(d.Item(vKEY), ChrW(8203))(1)
Next vKEY
d.RemoveAll: Set d = Nothing
End Sub
VBE立即窗口的结果:
key sum count
PersonA 100 2
PersonB 57 2
PersonC 13 1
答案 2 :(得分:3)
使用您的示例数据和类
clsItem:
Public Sum As Double
Public Count As Long
模块:
Sub dictionaryCreate()
Dim Pair As Variant
Dim q As Range, v, k
Dim RAWDATA As Range
Dim d As Dictionary
Set d = New Dictionary
Set RAWDATA = [A2:A6]
For Each q In RAWDATA
Pair = q.Value
v = q.Offset(0, 1).Value 'get the value to be added...
If d.Exists(Pair) Then
d(Pair).Sum = d(Pair).Sum + v
d(Pair).Count = d(Pair).Count + 1
Else
d.Add Pair, NewItem(v)
End If
Next
'print out dictionary content
For Each k In d
Debug.Print k, d(k).Sum, d(k).Count
Next k
End Sub
Function NewItem(v) As clsItem
Dim rv As New clsItem
rv.Sum = v
rv.Count = 1
Set NewItem = rv
End Function
答案 3 :(得分:0)
解决方案类似于 @Jeeped 答案,但有一些差异。
Sub test()
Dim i, cl As Range, Dic As Object
Set Dic = CreateObject("Scripting.Dictionary")
Dic.CompareMode = vbTextCompare
For Each cl In Sheets("RAW_DATA").[A2:A6]
If Not Dic.Exists(cl.Value) Then
Dic.Add cl.Value, cl.Offset(, 1).Value2 & "|" & 1
Else
Dic(cl.Value) = Split(Dic(cl.Value), "|")(0) + cl.Offset(, 1).Value2 & _
"|" & Split(Dic(cl.Value), "|")(1) + 1
End If
Next cl
Debug.Print "Key", "Sum", "Count"
For Each i In Dic
Debug.Print i, Split(Dic(i), "|")(0), Split(Dic(i), "|")(1)
Next i
End Sub
测试