pueblan valores únicos en una matriz de VBA desde Excel

Question

Puede alguien darme el código VBA que tendrá una serie (fila o columna) de una hoja de Excel y rellenar una lista/matriz con los valores únicos, es decir:

table 
table 
chair 
table 
stool 
stool 
stool 
chair 

cuando se ejecuta la macro crearían una serie algo como:

fur[0]=table 
fur[1]=chair 
fur[2]=stool 

Answer 1

En esta situación siempre uso un código como éste (a asegurarnos de delimitador elegido no es una parte del intervalo de búsqueda)

Dim tmp As String 
Dim arr() As String 

If Not Selection Is Nothing Then 
    For Each cell In Selection 
     If (cell <> "") And (InStr(tmp, cell) = 0) Then 
     tmp = tmp & cell & "|" 
     End If 
    Next cell 
End If 

If Len(tmp) > 0 Then tmp = Left(tmp, Len(tmp) - 1) 

arr = Split(tmp, "|") 

Answer 2

Sub GetUniqueAndCount() 

    Dim d As Object, c As Range, k, tmp As String 

    Set d = CreateObject("scripting.dictionary") 
    For Each c In Selection 
     tmp = Trim(c.Value) 
     If Len(tmp) > 0 Then d(tmp) = d(tmp) + 1 
    Next c 

    For Each k In d.keys 
     Debug.Print k, d(k) 
    Next k 

End Sub 

Answer 3

Esta es la manera de hacerlo de la vieja escuela.

Se ejecutará más rápido que el bucle en las celdas (por ejemplo, For Each cell In Selection) y será confiable sin importar qué, siempre que tenga una selección rectangular (es decir, no Ctrl-seleccionando un grupo de celdas aleatorias).

Sub FindUnique() 

    Dim varIn As Variant 
    Dim varUnique As Variant 
    Dim iInCol As Long 
    Dim iInRow As Long 
    Dim iUnique As Long 
    Dim nUnique As Long 
    Dim isUnique As Boolean 

    varIn = Selection 
    ReDim varUnique(1 To UBound(varIn, 1) * UBound(varIn, 2)) 

    nUnique = 0 
    For iInRow = LBound(varIn, 1) To UBound(varIn, 1) 
     For iInCol = LBound(varIn, 2) To UBound(varIn, 2) 

      isUnique = True 
      For iUnique = 1 To nUnique 
       If varIn(iInRow, iInCol) = varUnique(iUnique) Then 
        isUnique = False 
        Exit For 
       End If 
      Next iUnique 

      If isUnique = True Then 
       nUnique = nUnique + 1 
       varUnique(nUnique) = varIn(iInRow, iInCol) 
      End If 

     Next iInCol 
    Next iInRow 
    '// varUnique now contains only the unique values. 
    '// Trim off the empty elements: 
    ReDim Preserve varUnique(1 To nUnique) 
End Sub 

Answer 4

Combinando el enfoque de diccionario de Tim con la matriz variante de Jean_Francois a continuación.

La matriz que desea está en objDict.keys

Sub A_Unique_B() 
Dim X 
Dim objDict As Object 
Dim lngRow As Long 

Set objDict = CreateObject("Scripting.Dictionary") 
X = Application.Transpose(Range([a1], Cells(Rows.Count, "A").End(xlUp))) 

For lngRow = 1 To UBound(X, 1) 
    objDict(X(lngRow)) = 1 
Next 
Range("B1:B" & objDict.Count) = Application.Transpose(objDict.keys) 
End Sub 

Answer 5

El método de la vieja escuela era mi opción favorita. Gracias. Y fue realmente rápido. Pero no usé redim. Aquí, sin embargo, está mi ejemplo del mundo real donde acumulo valores para cada "clave" única que se encuentra en una columna y la muevo a una matriz (por ejemplo, para un empleado y los valores son horas trabajadas por día). Luego coloco cada clave con sus valores finales en un área total en la hoja activa. He comentado ampliamente para cualquiera que quiera detalles dolorosos sobre lo que está sucediendo aquí. La comprobación de errores limitada se realiza con este código.

Sub GetActualTotals() 
' 
' GetActualTotals Macro 
' 
' This macro accumulates values for each unique employee from the active 
' spreadsheet. 
' 
' History 
' October 2016 - Version 1 
' 
' Invocation 
' I created a button labeled "Get Totals" on the Active Sheet that invokes 
' this macro. 
' 
Dim ResourceName As String 
Dim TotalHours As Double 
Dim TotalPercent As Double 
Dim IsUnique As Boolean 
Dim FirstRow, LastRow, LastColumn, LastResource, nUnique As Long 
Dim CurResource, CurrentRow, i, j As Integer 
Dim Resource(1000, 2) As Variant 
Dim Rng, r As Range 
' 
' INITIALIZATIONS 
' 
' These are index numbers for the Resource array 
' 
Const RName = 0 
Const TotHours = 1 
Const TotPercent = 2 
' 
' Set the maximum number of resources we'll 
' process. 
' 
Const ResourceLimit = 1000 
' 
' We are counting on there being no unintended data 
' in the spreadsheet. 
' 
' It won't matter if the cells are empty though. It just 
' may take longer to run the macro. 
' But if there is data where this macro does not expect it, 
' assume unpredictable results. 
' 
' There are some hardcoded values used. 
' This macro just happens to expect the names to be in Column C (or 3). 
' 
' Get the last row in the spreadsheet: 
' 
LastRow = Cells.Find(What:="*", _ 
       After:=Range("C1"), _ 
       LookAt:=xlPart, _ 
       LookIn:=xlFormulas, _ 
       SearchOrder:=xlByRows, _ 
       SearchDirection:=xlPrevious, _ 
       MatchCase:=False).Row 
' 
' Furthermore, this macro banks on the first actual name to be in C6. 
' so if the last row is row 65, the range we'll work with 
' will evaluate to "C6:C65" 
' 
FirstRow = 6 
Rng = "C" & FirstRow & ":C" & LastRow 
Set r = Range(Rng) 
' 
' Initialize the resource array to be empty (even though we don't really 
' need to but I'm old school). 
' 
For CurResource = 0 To ResourceLimit 
    Resource(CurResource, RName) = "" 
    Resource(CurResource, TotHours) = 0 
    Resource(CurResource, TotPercent) = 0 
Next CurResource 
' 
' Start the resource counter at 0. The counter will represent the number of 
' unique entries. 
' 
nUnique = 0 
' 
' LET'S GO 
' 
' Loop from the first relative row and the last relative row 
' to process all the cells in the spreadsheet we are interested in 
' 
For i = 1 To LastRow - FirstRow 
' 
' Loop here for all unique entries. For any 
' new unique entry, that array element will be 
' initialized in the second if statement. 
' 
    IsUnique = True 
    For j = 1 To nUnique 
' 
' If the current row element has a resource name and is already 
' in the resource array, then accumulate the totals for that 
' Resource Name. We then have to set IsUnique to false and 
' exit the for loop to make sure we don't populate 
' a new array element in the next if statement. 
' 
     If r.Cells(i, 1).Value = Resource(j, RName) Then 
      IsUnique = False 
      Resource(j, TotHours) = Resource(j, TotHours) + _ 
      r.Cells(i, 4).Value 
      Resource(j, TotPercent) = Resource(j, TotPercent) + _ 
      r.Cells(i,5).Value 
      Exit For 
     End If 
    Next j 
' 
' If the resource name is unique then copy the initial 
' values we find into the next resource array element. 
' I ignore any null cells. (If the cell has a blank you might 
' want to add a Trim to the cell). Not much error checking for 
' the numerical values either. 
' 
    If ((IsUnique) And (r.Cells(i, 1).Value <> "")) Then 
     nUnique = nUnique + 1 
     Resource(nUnique, RName) = r.Cells(i, 1).Value 
     Resource(nUnique, TotHours) = Resource(nUnique, TotHours) + _ 
     r.Cells(i, 4).Value 
     Resource(nUnique, TotPercent) = Resource(nUnique, TotPercent) + _ 
     r.Cells(i, 5).Value 
    End If     
Next i 
' 
' Done processing all rows 
' 
' (For readability) Set the last resource counter to the last value of 
' nUnique. 
' Set the current row to the first relative row in the range (r=the range). 
' 
LastResource = nUnique 
CurrentRow = 1 
' 
' Populate the destination cells with the accumulated values for 
' each unique resource name. 
' 
For CurResource = 1 To LastResource 
    r.Cells(CurrentRow, 7).Value = Resource(CurResource, RName) 
    r.Cells(CurrentRow, 8).Value = Resource(CurResource, TotHours) 
    r.Cells(CurrentRow, 9).Value = Resource(CurResource, TotPercent) 
    CurrentRow = CurrentRow + 1 
Next CurResource 

End Sub 

Answer 6

una forma más ...

Sub get_unique() 
Dim unique_string As String 
    lr = Sheets("data").Cells(Sheets("data").Rows.Count, 1).End(xlUp).Row 
    Set range1 = Sheets("data").Range("A2:A" & lr) 
    For Each cel In range1 
     If Not InStr(output, cel.Value) > 0 Then 
      unique_string = unique_string & cel.Value & "," 
     End If 
    Next 
End Sub