[ Excel VBA to count and print distinct values ]

I have to count number of distinct values from a column and print it with the distinct value and count in another sheet. I am working with this piece of code, but for some reason, it is not returning any result. Could anyone tell me where I am missing the piece!

Dim rngData As Range
Dim rngCell As Range
Dim colWords As Collection
Dim vntWord As Variant
Dim Sh As Worksheet
Dim Sh1 As Worksheet
Dim Sh2 As Worksheet
Dim Sh3 As Worksheet

On Error Resume Next

Set Sh1 = Worksheets("A")
Set Sh2 = Worksheets("B")
Set Sh3 = Worksheets("C")

Sh1.Range("A2:B650000").Delete

Set Sh = Worksheets("A")
Set r = Sh.AutoFilter.Range
r.AutoFilter Field:=24
r.AutoFilter Field:=24, Criteria1:="My Criteria"

Sh1.Range("A2:B650000").Delete

Set colWords = New Collection

Dim lRow1 As Long
lRow1 = <some number>

Set rngData = <desired range>
For Each rngCell In rngData.Cells
    colWords.Add colWords.Count + 1, rngCell.Value
    With Sh1.Cells(1 + colWords(rngCell.Value), 1)
        .Value = rngCell.Value
        .Offset(0, 1) = .Offset(0, 1) + 1
    End With
Next

Above is my full code.. My required outcome is simple, count number of occurrences of each cell in a column, and print it in another sheet with the count of occurrences. Thanks!

Thanks! Navs.

Answer 1

This is extreamlly easy and practical to do using a dictionary object. The logic is similar to Kittoes answer, but the dictionary object is much faster, effecient, and you can output an array of all keys and items, which you want to do here. I have simplified the code to generating a list from column A, but you will get the idea.

Sub UniqueReport()

Dim dict As Object
Set dict = CreateObject("scripting.dictionary")
Dim varray As Variant, element As Variant

varray = Range("A1:A10").Value

'Generate unique list and count
For Each element In varray
    If dict.exists(element) Then
        dict.Item(element) = dict.Item(element) + 1
    Else
        dict.Add element, 1
    End If
Next

'Paste report somewhere
Sheet2.Range("A1").Resize(dict.Count, 1).Value = _
    WorksheetFunction.Transpose(dict.keys)
Sheet2.Range("B1").Resize(dict.Count, 1).Value = _
    WorksheetFunction.Transpose(dict.items)

End Sub

How it works: You just dump the range into a variant array to loop through quickly, then add each to the dictionary. If it exists, you just take the item that goes with they key (starts at 1) and add one to it. Then at the end just slap the unique list and the counts wherever you need them. Please note that the way I create an object for the dictionary allows anyone to use it - there is no need to add a reference to your code.

Answer 2

Not the prettiest or most optimum route but it'll get the job done and I'm pretty sure you can understand it:

Option Explicit

Sub TestCount()

Dim rngCell As Range
Dim arrWords() As String, arrCounts() As Integer
Dim bExists As Boolean
Dim i As Integer, j As Integer

ReDim arrWords(0)

For Each rngCell In ThisWorkbook.Sheets("Sheet1").Range("A1:A20")
    bExists = False

    If rngCell <> "" Then
        For i = 0 To UBound(arrWords)
            If arrWords(i) = rngCell.Value Then
                bExists = True
                arrCounts(i) = arrCounts(i) + 1
            End If
        Next i

        If bExists = False Then
            ReDim Preserve arrWords(j)
            ReDim Preserve arrCounts(j)

            arrWords(j) = rngCell.Value
            arrCounts(j) = 1

            j = j + 1
        End If
    End If
Next

For i = LBound(arrWords) To UBound(arrWords)
    Debug.Print arrWords(i) & ", " & arrCounts(i)
Next i

End Sub

This will loop through A1:A20 on "Sheet1". If the cell is not blank it will check to see if the word exists in the array. If not then it adds it to the array with a count of 1. If it does exist then it simply adds 1 to the count. I hope this suits your needs.

Also, just something to keep in mind after glancing at your code: you should virtually NEVER use On Error Resume Next.