I created a user-defined function to show the degree to which companies are matchable. This function works really well, as long as the range I use as thisRange is less than or close to row 2800. I have a list of 4000 companies and when I try to include those in rows over 2800, the function doesn’t work. Can the range only be so big? Is there any way to fix this problem?
Here’s the code:
Function bestMatch(company As String, thisRange As Range) As String Dim min As Double, nextMin As Double Dim cell As Range Dim score As Double Dim best As String, str As String, nextBest As String min = 99999 nextMin = 99999 For Each cell In thisRange.Cells str = cell.Value substr1 = Left(str, 1) substr2 = Left(company, 1) score = Leven(company, str) If score < min And substr1 = substr2 Then min = score best = str ElseIf score = min And substr1 = substr2 Then min = score best = str + " && " + best ElseIf score > min And score <= nextMin And substr1 = substr2 Then nextMin = score nextBest = str min = min best = best End If Next If min > 15 Then bestMatch = "No Match Found" ElseIf min <= 15 Then bestMatch = "1. " + best + " 2. " + nextBest End If End Function
Refer to the web page Excel specifications and limits
The sections of this page include:
Worksheet and workbook specifications and limits
Calculation specifications and limits
Charting specifications and limits
PivotTable and PivotChart report specifications and limits
Shared workbook specifications and limits
I believe a range can be as large as an entire worksheet. A worksheet’s size limit is listed as 1,048,576 rows by 16,384 columns.
In the “Calculation specifications and limits” section, the limit of a Selected Range is listed as 2048.
What if you try to dump all the values in an array first
Function bestMatch(company As String, start_cell As Range, int count) As String Dim vals() as Variant vals = start_cell.Resize(count,1).Value2 For i=1 to count substr1 = Left(vals(i,1), 1) ... Next i ... End Function
I have tried this with >4000 cells and there is no problem.
There is a limitation of the substring for Range object and it is varying depending on the version of Excel you are using. But from what I remember, I am pretty sure it is less than 4000, whatever version you have.
In order to turn this thing around, you should divide it into some parts and use Union.