Multiple unique values (VBA)

C

cuchulainem

New Member
Joined
Aug 31, 2011
Messages
6
Hi, I have a spreadsheet set up similar to this:

<TABLE style="WIDTH: 148pt; BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=197 border=0 x:str><COLGROUP><COL style="WIDTH: 17pt; mso-width-source: userset; mso-width-alt: 841" width=23><COL style="WIDTH: 43pt; mso-width-source: userset; mso-width-alt: 2084" width=57><COL style="WIDTH: 88pt; mso-width-source: userset; mso-width-alt: 4278" width=117><TBODY><TR style="HEIGHT: 12.75pt" height=17><TD class=xl26 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 17pt; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: #c8c1bc" width=23 height=17></TD><TD class=xl27 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 43pt; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: #c8c1bc" width=57>A</TD><TD class=xl27 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 88pt; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: #c8c1bc" width=117>B</TD></TR><TR style="HEIGHT: 13.5pt" height=18><TD class=xl27 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; HEIGHT: 13.5pt; BACKGROUND-COLOR: #c8c1bc" height=18 x:num>1</TD><TD class=xl25 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent">Name</TD><TD class=xl25 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent">Date & Time</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl27 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: #c8c1bc" height=17 x:num>2</TD><TD style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent">Quint</TD><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" align=right x:num="40786.72146886574">8/31/2011 5:18 PM</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl27 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: #c8c1bc" height=17 x:num>3</TD><TD style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent">Jack</TD><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" align=right x:num="40787.721468807867">9/1/2011 5:18 PM</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl27 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: #c8c1bc" height=17 x:num>4</TD><TD style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent">Riley</TD><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" align=right x:num="40788.721468807867">9/2/2011 5:18 PM</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl27 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: #c8c1bc" height=17 x:num>5</TD><TD style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent">Yancy</TD><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" align=right x:num="40789.721468807867">9/3/2011 5:18 PM</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl27 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: #c8c1bc" height=17 x:num>6</TD><TD style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent">Yancy</TD><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" align=right x:num="40790.721468807867">9/4/2011 5:18 PM</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl27 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: #c8c1bc" height=17 x:num>7</TD><TD style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent">Ann</TD><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" align=right x:num="40791.721468807867">9/5/2011 5:18 PM</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl27 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: #c8c1bc" height=17 x:num>8</TD><TD style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent">Quint</TD><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" align=right x:num="40792.721468807867">9/6/2011 5:18 PM</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl27 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: #c8c1bc" height=17 x:num>9</TD><TD style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent">Jack</TD><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" align=right x:num="40793.721468807867">9/7/2011 5:18 PM</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl27 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: #c8c1bc" height=17 x:num>10</TD><TD style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent">Riley</TD><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" align=right x:num="40794.721468807867">9/8/2011 5:18 PM</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl27 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: #c8c1bc" height=17 x:num>11</TD><TD style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent">Bobby</TD><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" align=right x:num="40795.721468807867">9/9/2011 5:18 PM</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl27 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: #c8c1bc" height=17 x:num>12</TD><TD style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent">Carl</TD><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" align=right x:num="40796.721468807867">9/10/2011 5:18 PM</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl27 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: #c8c1bc" height=17 x:num>13</TD><TD style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent">Donna</TD><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" align=right x:num="40797.721468807867">9/11/2011 5:18 PM</TD></TR></TBODY></TABLE>

What I am trying to do is to simultaneously find the instance of each person's name that corresponds to the most recent date (for that person). And then perform conditional formatting on each row of data for those rows based on the date. The names are likely to change and be numerous. The dates are static values (not text). I can macro-record the conditional formatting I need to insert into VBA.

Right now I have a simplified version set up on all cells using this formula in the conditional formatting wizard:
=IF(LOOKUP(2,1/($A$2:$A$500=$A2),$C$2:$C$500)>TODAY()+7,TRUE,FALSE)

This simplified version highlights all occurrences (rows) of a name that has one date that is more than 7 days past Today(). I just want to highlight the most current row. So in the above example, all instances of Riley are highlighted instead of only the most recent one on 9/8/2011.

Plus, running this in VBA wouldn't bog down the spreadsheet.

Thanks for your help,

Eric
 

Excel Facts

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Press Alt+Enter to move to a new row in a cell. Lets you control where the words wrap.
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hope this helps you:

Code: 
Sub highlight_recent()

letterName = "A"
letterDate = "B"

'create an array of unique names
Dim unique As Boolean
lastRow = Range(letterName & "1").End(xlDown).Row
ReDim Arr(1 To lastRow, 1 To 2) As Variant
nUnique = 0

'assumed that in first row are placed headlines so:
For i = 2 To lastRow
        unique = True
        For j = 1 To i - 1
            If Arr(j, 1) = Cells(i, letterName).Value Then unique = False
        Next j
        
        If unique Then
            nUnique = nUnique + 1
            Arr(nUnique, 1) = Cells(i, letterName).Value
            Arr(nUnique, 2) = Cells(i, letterDate).Value
        End If
Next i

Arr = WorksheetFunction.Transpose(Arr)
ReDim Preserve Arr(1 To 2, 1 To nUnique)
Arr = WorksheetFunction.Transpose(Arr)

'adding most recent date for each name to an array of unique names
For j = 1 To nUnique
    For i = 2 To lastRow
        If Arr(j, 1) = Cells(i, letterName).Value Then
            If DateValue(Arr(j, 2)) <= DateValue(Cells(i, letterDate).Value) Then _
            Arr(j, 2) = Cells(i, letterDate).Value
        End If
    Next i
Next j

' highlight recent entries
For j = 1 To nUnique
    For i = 1 To lastRow
        If Arr(j, 1) = Cells(i, letterName).Value And Arr(j, 2) = _
        Cells(i, letterDate).Value Then
            'put your formatting code here, or:
            Cells(i, "C").Value = "most recent"
        End If
    Next i
Next j
End Sub
 
Upvote 0
P.Holko said:
hope this helps you:

Code: 
Sub highlight_recent()
 
letterName = "A"
letterDate = "B"
 
'create an array of unique names
Dim unique As Boolean
lastRow = Range(letterName & "1").End(xlDown).Row
ReDim Arr(1 To lastRow, 1 To 2) As Variant
nUnique = 0
 
'assumed that in first row are placed headlines so:
For i = 2 To lastRow
        unique = True
        For j = 1 To i - 1
            If Arr(j, 1) = Cells(i, letterName).Value Then unique = False
        Next j
 
        If unique Then
            nUnique = nUnique + 1
            Arr(nUnique, 1) = Cells(i, letterName).Value
            Arr(nUnique, 2) = Cells(i, letterDate).Value
        End If
Next i
 
Arr = WorksheetFunction.Transpose(Arr)
ReDim Preserve Arr(1 To 2, 1 To nUnique)
Arr = WorksheetFunction.Transpose(Arr)
 
'adding most recent date for each name to an array of unique names
For j = 1 To nUnique
    For i = 2 To lastRow
        If Arr(j, 1) = Cells(i, letterName).Value Then
            If DateValue(Arr(j, 2)) <= DateValue(Cells(i, letterDate).Value) Then _
            Arr(j, 2) = Cells(i, letterDate).Value
        End If
    Next i
Next j
 
' highlight recent entries
For j = 1 To nUnique
    For i = 1 To lastRow
        If Arr(j, 1) = Cells(i, letterName).Value And Arr(j, 2) = _
        Cells(i, letterDate).Value Then
            'put your formatting code here, or:
            Cells(i, "C").Value = "most recent"
        End If
    Next i
Next j
End Sub
Click to expand...

Nice Script mate.
Would you declare as below?
Const letterName = "A"
Const letterDate = "B"

Biz
 
Upvote 0
Thanks mate. Learning quite a bit today.
 
Upvote 0
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