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12327872
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0
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2012-09-08T03:53:53.517
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2012-12-23T03:00:14.653
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2012-12-23T03:00:14.653
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<p>here's a fast way to return the number of substring occurrences. Hope it helps!</p> <pre><code>Option Explicit Option Compare Binary Option Base 0 DefLng A-Z Sub TestSubStringOccurence() Dim GrabRangeArray() As Variant Dim i As Long Dim L As Long Dim RunTime As Double Dim SubStringCounter As Long Dim J As Long Dim InStrPosition As Long Dim Ws As Excel.Worksheet Set Ws = ThisWorkbook.Sheets("Sheet1") RunTime = Timer With Ws For i = 1 To 50000 If i Mod 2 = 0 Then .Cells(i, 1).Value2 = "1 abcdef 2 abcdef 3 abcdef 4 abcdef 5 abcdef" _ Else .Cells(i, 1).Value2 = i Next i GrabRangeArray = .Range("a1:a50000").Value End With RunTime = Timer 'returns number of substring occurrences For i = 1 To UBound(GrabRangeArray, 1) InStrPosition = 1 Do InStrPosition = InStr(InStrPosition, GrabRangeArray(i, 1), "abcdef", vbBinaryCompare) If InStrPosition <> 0 Then SubStringCounter = SubStringCounter + 1 InStrPosition = InStrPosition + 6 End If Loop Until InStrPosition = 0 Next i Debug.Print "Runtime: " & Timer - RunTime & ", ""abcdef"" occurences: " & SubStringCounter End Sub </code></pre> <p>here's a fast way to test if a substring exists, but does not return the number of substring occurrences.</p> <pre><code>Option Explicit Option Compare Binary Option Base 0 DefLng A-Z Sub TestSubStringOccurence() Dim GrabRangeArray() As Variant Dim I As Long Dim L As Long Dim RunTime As Double Dim SubStringCounter As Long Dim J As Long Dim InStrPosition As Long Dim Ws As Excel.Worksheet Const ConstABCDEFString As String = "abcdef" Dim B As Boolean Set Ws = ThisWorkbook.Sheets("Sheet1") RunTime = Timer ReDim GrabRangeArray(0 To 49999) With Ws For I = 1 To 50000 If I Mod 2 = 0 Then GrabRangeArray(I - 1) = "1 abcdef 2 abcdef 3 abcdef 4 abcdef 5 abcdef" _ Else GrabRangeArray(I - 1) = I - 1 Next I .Range("a1:a50000").Value = Application.Transpose(GrabRangeArray) End With RunTime = Timer For I = 1 To UBound(GrabRangeArray, 1) If InStrB(1, GrabRangeArray(I), ConstABCDEFString, vbBinaryCompare) Then _ SubStringCounter = SubStringCounter + 1 Next I Debug.Print "Runtime: " & Timer - RunTime & ", ""abcdef"" occurences: " & SubStringCounter End Sub </code></pre>
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