我在Excel中使用以下vb代码来计算列A和列B之间的程度相似度。它运行得非常好。运行vb代码计算相似度时定义首字母缩略词
对我来说,下一步是定义首字母缩略词,以便计算出的相似度不受影响。 IE:如果我在A列“ABC有限责任公司”和B列“ABC有限责任公司”中,目前的VB代码将返回两列不很相似。然而,我希望他们通过定义“有限责任公司”和“有限责任公司”确实是一回事,将其归为100%类似。我可以做什么,我可以在代码中将它放在哪里来完成此任务?谢谢!
免责声明 - 是的我知道有这样做的插件。但是,我的数据集太大而无法使用它们。
Public Function Similarity(ByVal String1 As String, _
ByVal String2 As String, _
Optional ByRef RetMatch As String, _
Optional min_match = 1) As Single
'Returns percentile of similarity between 2 strings (ignores case)
'"RetMatch" returns the characters that match(in order)
'"min_match" specifies minimum number af char's in a row to match
Dim b1() As Byte, b2() As Byte
Dim lngLen1 As Long, lngLen2 As Long
Dim lngResult As Long
If UCase(String1) = UCase(String2) Then '..Exactly the same
Similarity = 1
Else '..one string is empty
lngLen1 = Len(String1)
lngLen2 = Len(String2)
If (lngLen1 = 0) Or (lngLen2 = 0) Then
Similarity = 0
Else '..otherwise find similarity
b1() = StrConv(UCase(String1), vbFromUnicode)
b2() = StrConv(UCase(String2), vbFromUnicode)
lngResult = Similarity_sub(0, lngLen1 - 1, _
0, lngLen2 - 1, _
b1, b2, _
String1, _
RetMatch, _
min_match)
Erase b1
Erase b2
If lngLen1 >= lngLen2 Then
Similarity = lngResult/lngLen1
Else
Similarity = lngResult/lngLen2
End If
End If
End If
End Function
Private Function Similarity_sub(ByVal start1 As Long, ByVal end1 As Long, _
ByVal start2 As Long, ByVal end2 As Long, _
ByRef b1() As Byte, ByRef b2() As Byte, _
ByVal FirstString As String, _
ByRef RetMatch As String, _
ByVal min_match As Long, _
Optional recur_level As Integer = 0) As Long
'* CALLED BY: Similarity * (RECURSIVE)
Dim lngCurr1 As Long, lngCurr2 As Long
Dim lngMatchAt1 As Long, lngMatchAt2 As Long
Dim i As Long
Dim lngLongestMatch As Long, lngLocalLongestMatch As Long
Dim strRetMatch1 As String, strRetMatch2 As String
If (start1 > end1) Or (start1 < 0) Or (end1 - start1 + 1 < min_match) _
Or (start2 > end2) Or (start2 < 0) Or (end2 - start2 + 1 < min_match) Then
Exit Function '(exit if start/end is out of string, or length is too short)
End If
For lngCurr1 = start1 To end1 '(for each char of first string)
For lngCurr2 = start2 To end2 '(for each char of second string)
i = 0
Do Until b1(lngCurr1 + i) <> b2(lngCurr2 + i) 'as long as chars DO match..
i = i + 1
If i > lngLongestMatch Then '..if longer than previous best, store starts & length
lngMatchAt1 = lngCurr1
lngMatchAt2 = lngCurr2
lngLongestMatch = i
End If
If (lngCurr1 + i) > end1 Or (lngCurr2 + i) > end2 Then Exit Do
Loop
Next lngCurr2
Next lngCurr1
If lngLongestMatch < min_match Then Exit Function 'no matches at all, so no point checking for sub-matches!
lngLocalLongestMatch = lngLongestMatch 'call again for BEFORE + AFTER
RetMatch = ""
'Find longest match BEFORE the current position
lngLongestMatch = lngLongestMatch _
+ Similarity_sub(start1, lngMatchAt1 - 1, _
start2, lngMatchAt2 - 1, _
b1, b2, _
FirstString, _
strRetMatch1, _
min_match, _
recur_level + 1)
If strRetMatch1 <> "" Then
RetMatch = RetMatch & strRetMatch1 & "*"
Else
RetMatch = RetMatch & IIf(recur_level = 0 _
And lngLocalLongestMatch > 0 _
And (lngMatchAt1 > 1 Or lngMatchAt2 > 1) _
, "*", "")
End If
'add local longest
RetMatch = RetMatch & Mid$(FirstString, lngMatchAt1 + 1, lngLocalLongestMatch)
'Find longest match AFTER the current position
lngLongestMatch = lngLongestMatch _
+ Similarity_sub(lngMatchAt1 + lngLocalLongestMatch, end1, _
lngMatchAt2 + lngLocalLongestMatch, end2, _
b1, b2, _
FirstString, _
strRetMatch2, _
min_match, _
recur_level + 1)
If strRetMatch2 <> "" Then
RetMatch = RetMatch & "*" & strRetMatch2
Else
RetMatch = RetMatch & IIf(recur_level = 0 _
And lngLocalLongestMatch > 0 _
And ((lngMatchAt1 + lngLocalLongestMatch < end1) _
Or (lngMatchAt2 + lngLocalLongestMatch < end2)) _
, "*", "")
End If
'Return result
Similarity_sub = lngLongestMatch
End Function
如果您可以使用缩写词及其定义创建数组(可能在另一个工作表中?),则可以使用检查来检查值是否引用表中的索引/匹配。这可能是Select Case的一部分,其中第一个Case是您的典型支票,第二个Case是此索引/匹配支票,而您的第三个Case是“不相似”。只是一个想法。 – Cyril