excel vba compare one range with another - vba

I'm quite massively out of my depth here having never used vba before (My main role is primarily sql based), i'd like to sit down and spend a few days actually learing how all this works but i don't have days right now, hence throwing myself on your mercy!
Sub updateduration()
If Worksheets("Sheet1").Range("I4").Value = "Y" Then
Worksheets("Sheet1").Range("H4").Interior.ColorIndex = 43
Else
If Worksheets("Sheet1").Range("J4").Value = 1 Then
Worksheets("Sheet1").Range("H4").Interior.ColorIndex = 3
Else
If Worksheets("Sheet1").Range("J4").Value = 0 Then
Worksheets("Sheet1").Range("H4").Interior.ColorIndex = 45
End If
End If
End If
End Sub
As ugly as that probably is it works, Im now trying to adapt it so it adjusts all the cells in range H4:H34 one by one checking each if statement against the equivelant cell (i.e. range I4:I34 and range J4:34)
I've been looking at 'for each' to form an initial loop but am struggling to figure out how to specify which cells in the other ranges to look at in each iteration of the loop.
Any help or advice appreciated
L

Welcome to SE, L! You're off to a good start, and you're right that a FOR..NEXT loop is what you're looking for. The trick is to edit your Range with a variable, like this:
Sub updateduration()
Dim startRow As Integer, endRow As Integer
startRow = 4 'first row to compare/update
endRow = 34 'last row to compare/update
For myRow = startRow To endRow
If Worksheets("Sheet1").Range("I" & myRow).Value = "Y" Then
Worksheets("Sheet1").Range("H" & myRow).Interior.ColorIndex = 43
Else
If Worksheets("Sheet1").Range("J" & myRow).Value = 1 Then
Worksheets("Sheet1").Range("H" & myRow).Interior.ColorIndex = 3
Else
If Worksheets("Sheet1").Range("J" & myRow).Value = 0 Then
Worksheets("Sheet1").Range("H" & myRow).Interior.ColorIndex = 45
End If
End If
End If
Next myRow
End Sub

Related

Excel VBA - Conditional highlighting based on many criteria

I have a vba-created speadsheet with 4 sets of criteria. I need to highlight names at the bottom of the sheet based on whether or not they meet all the criteria.
I need the name to highlight if the analyst took 91 minutes or less of total break (B3:F9) each day, 15 minutes or less of tea break (B12:F18), and made at least 3 outbound calls each day (provided the staff time was 8 hours and 58 minutes or more (if it wasn't, the 3 call threshold does not apply)).
So, a function would be something like:
If
TtlB<91 mins & TeaB<15
& If
StfT <8:58:00 ignore ObC
Else If
StfT >8:58:00 & ObC>=3
Highlight (analyst name in A22:A28)
I know it will probably involve a nested loop or two, I just don't know where to get started. The loop for calculating "Total Minutes Owed" is below which can probably be modified to help me get started with this.
Dim i As Integer, j As Integer, k As Integer
j = 3
k = 12
For i = 22 To 28
Range("B" & i) = "=SUM(G" & j & ",G" & k & ")"
j = j + 1
k = k + 1
Next i
I'm pretty shure that a much more compact code can be done. But, since nobody answer you in the last four hours, try the following at least as an start.
Private Sub CommandButton1_Click()
Dim oWs As Worksheet
Dim rAnalysts As Range
Dim rBreak As Range
Dim rObC As Range
Dim rTea As Range
Dim rST As Range
Dim rRow As Range
Dim rIntersection As Range
Dim rCell As Range
Set oWs = Worksheets("MyData") 'The worksheet where data resides
MaxBreakTime = oWs.Cells(1, 7).Value 'The max break time. I set it in cell G1. Change according to your needs
Set rAnalysts = oWs.Rows("3:9") 'Define the rows for analysts
Set rBreak = oWs.Range("B:F") 'define the columns where Break data is placed
'(similarly, set ranges for tea break, etc)
For Each rRow In rAnalysts.Rows 'for each row in the analyst range
sAnalystName = oWs.Cells(rRow.Row, 1).Value 'get the name of the analyst
lBreakTime = 0 'restart this variable to zero
Set rIntersection = Application.Intersect(rRow, rBreak) ' intersect the row (the analyst) with the columns of the Break range
If rIntersection Is Nothing Then
MsgBox "Ranges do not intersect. Something is radically wrong."
Else
For Each rCell In rIntersection.Cells 'id est, friday through thursday
If rCell.Value > MaxBreakTime Then 'if break was longer that stipulated,....
lBreakTime = lBreakTime + rCell.Value - MaxBreakTime 'add the excess to the variable
End If
Next
End If
'write data somewhere (here, 30 rows down from original Analysts range)
oWs.Cells(rRow.Row + 30, 1) = sAnalystName
oWs.Cells(rRow.Row + 30, 2) = lBreakTime
If lBreakTime > 0 Then
oWs.Cells(rRow.Row + 30, 2).Font.Color = vbGreen
oWs.Cells(rRow.Row + 30, 2).Interior.Color = vbRed
End If
Next
'Here something similar for Tea break and Outbounds calls
'Since output is already writen, you can reuse variables like rIntersection or rCell
End Sub

Comparing 2 columns in Excel to see "Next High" using VBA

I am fairly new to using VBA code and want to try implementing it in a hypothetical problem I am currently working on. I want to be able to compare 2 columns to see if they have similar numbers, and the first instance of a dissimilar number will become the "Next High." For example:
Client Market
90 87
92 91.25
95 92
95.5 93.5
95
95.5
Next High:
Starting from the bottom of the list, the VBA macro should see if the Market and Client side have the same numbers. The first instance of a number that is on the Market side and not on the client side should be the "Next High". For example, in the above list, 95.5 is on the Market and Client side, and so is 95. Because the next number above 95 on the Market side is 93.5, and this is a higher number than the next number on the Client side(92), this becomes the "Next High."
I would appreciaite some direction with the VBA code! I will eleborate if this is confusing, thank you!
See the attached code and review it. I hope that this will help you get started and allow you to ask any specific questions that you may have.
Code:
Option Explicit
' This sub assumes that the columns are in ascending order already
Sub nextHigh()
' declaring variables before using them
Dim lastRowClient As Long
Dim lastRowMarket As Long
Dim i As Integer
Dim j As Integer
Dim testValue As String
Dim nextHigh As Double
Dim checkValue As String
Dim valueFound As Boolean
' initializing variables to a known value
lastRowClient = 0
lastRowMarket = 0
i = 0
j = 0
testValue = ""
nextHigh = 0
checkValue = ""
valueFound = False
' gets the last row of column 1
With Sheets("Sheet1")
lastRowClient = .Range("A" & .Rows.Count).End(xlUp).Row
lastRowMarket = .Range("B" & .Rows.Count).End(xlUp).Row
End With
' for loop to iterate over column 2. note that you can specify the step value and change it from the default of +1
For i = lastRowMarket To 2 Step -1
testValue = Cells(i, 2).value
' this loop iterates to check the found value against column 1
For j = lastRowClient To 2 Step -1
checkValue = Cells(j, 1).value
' actual check
If testValue = checkValue Then
'value was found and therefore is not "NextHigh"
valueFound = True
Exit For ' value was found so stop searching
Else
'value was notfound and therefore is "NextHigh"
valueFound = False
End If
Next j
If Not valueFound Then
' print out value to next column
Cells(2, 3).value = testValue
Exit Sub 'exits sub to avoid excessive looping
End If
Next i
End Sub
Program output:
Do you absolutely have to use VBA for this? There's a fairly simple formula you could use instead. Using your provided example data, this formula returns the correct result:
=MAX(INDEX((COUNTIF(A2:B7,A2:B7)=1)*A2:B7,))

Excel-VBA : Skip subroutine if cell is empty

Ok, so I have 10 columns, labelled "A"-"J".
Each Row will have some combination of these columns filled in with string values.
I need to run some conditional statements and I'm wondering if there is a more efficient method of doing them without simply looping through them all.
What I have now:
If isempty("A1) then
Else
if isempty("B1") then
else
Sheet2!"B1" = "A1 and B1"
end if
if isempty("C1") then
else
Sheet2!"A1" = "A1 and C1"
end if
[...etc]
end if
If isempty("B1) then
Else
if isempty("C1") then
else
Sheet2!"B1" = "B1 and C1"
end if
if isempty("D1") then
else
Sheet2!"C1" = "C1 and D1"
end if
[...etc]
end if
It's long, cumbersome, and not very pretty. Moreover, it takes a long time because we have a few hundred records (rows) to go through. Is there a faster way to look at X Row, say A,B,C,E,&J have things, and do stuff based on that.
If A,C,&J are filled Do this..
If B is empty do this...
If C Or D is full, do this other thing.
I'm not entirely sure of the order in which cells should be checked but perhaps this will get you started.
Dim rw As Long, lr As Long
With Cells(1, 1).CurrentRegion
lr = .Rows.Count
For rw = 1 To lr
If Application.CountA(Range("A" & rw & ",C" & rw & ",J" & rw)) = 3 Then
'If A,C,&J are filled Do this..
ElseIf IsEmpty(Range("B" & rw)) Then
'If B is empty do this...
ElseIf CBool(Application.CountA(Range("C" & rw & ",D" & rw))) Then
'If C Or D is full, do this other thing.
End If
Next rw
End With

Logical error comparing two ranges cells values

This program aims to compare two named ranges in two sheets. If the cells values are found in both sheets it highlights cells in green otherwise in red.
In my code below, I get a logical error.
I compare the results in the two sheets manually but I get totally different results.
Public Sub FindBtn_Click()
range1Name = namedRange1TxtBox
range2Name = namedRange2TxtBox
sheet1Name = Sheet1txt
sheet2Name = Sheet2txt
Dim range1No(), range2No() As Variant
range1No() = Range(range1Name)
range2No() = Range(range2Name)
Dim i, j As Integer
Dim cell As Variant 'Range
For i = LBound(range1No()) To UBound(range1No())
For j = LBound(range2No()) To UBound(range2No())
Set cell = Worksheets(sheet1Name).Range(range1Name).Find(what:=Worksheets(sheet2Name).Range(range2Name).Cells(i, 1).Value, lookat:=xlWhole)
If Not cell Is Nothing Then ' if jde cell value is found in tops then green jde cell
Worksheets(sheet1Name).Range(range1Name).Cells(i, 1).Interior.ColorIndex = 4
Else
Worksheets(sheet1Name).Range(range1Name).Cells(i, 1).Interior.ColorIndex = 3
End If
Application.StatusBar = "Progress: " & i & " of " & UBound(range1No()) '& Format(i / 9331, "%")
Next j
Next i
Without spending a while on in, I'm not too sure what's actually wrong with your code. But how about doing it this way (I substituted strings in the variables so I could make it work locally).
Public Sub FindBtn_Click()
range1Name = "firstrange"
range2Name = "secondrange"
sheet1Name = "Sheet1"
sheet2Name = "Sheet2"
Dim range1cell As Range
Dim range2cell As Range
For Each range1cell In Range(range1Name)
range1cell.Interior.ColorIndex = 3
For Each range2cell In Range(range2Name)
If range1cell.Value = range2cell.Value Then
range1cell.Interior.ColorIndex = 4
Exit For
End If
Next range2cell
Next range1cell
End Sub
On looking closer, I notice that while you're looping through values of j you don't seem to refer to j anywhere else.
the following code solved my problem basicly I don't know how to use the find function properly. below a code that does the job :)
Thanks :)
Dim cell1 As Range, cell2 As Range
Dim add1 As Variant
With Worksheets("JDE").Range("JS_No")
For Each cell2 In Worksheets("TOPS").Range("TechID")
Set cell1 = .Find(cell2, LookIn:=xlValues)
If Not cell1 Is Nothing Then
add1 = cell1.Address
Do
cell1.Interior.ColorIndex = 4
cell2.Interior.ColorIndex = 4
Application.StatusBar = "Processing: " & add1
Loop While Not cell1 Is Nothing And cell1.Address <> add1
End If
Next cell2
End With

Need a better optimized code?

Need a much Optimized code.Well I Got a Project and I have Succefully made it work with the vba (Mostly helped by the stackoverflow programmers Thanks for that)
But Today I got a Feedback. Its deleting 2 more unique entries in the record But I dont know why its deleting Them.
The Algorithm I have applied
I have Used the COUNTIF function Which I found on google
="countif(A$1:A2,A3)=0" A3 is the active cell, Checks A2,A1 for dupes
It Throws False if there is a duplicate in The A column and True If it is a unique.What I have understood about Countif is that
It checks all the above columns values from that cell I mean let us take A4. SO it checks A2,A1,A3 for the duplicate. Similarly A10 checks for A1 to A9 and throws either TRue or False.Well It was working But I dont know what went wrong The code is not working for some entries.Its even showing False for the Unique entries sometimes.
And its taking more time to applye these formula as I have more amount of data. Im trying to make it cleaner and more Optimizing Way.People told me its not a c or some other Language to make it optimize but Im need of code that makes my code more optimized
I need code for these condtions can anyone help me as my countif failed.Im little helpless in doing so.
1)I have a column and I should check for duplicates in that column and delete that row if it is a duplicate
2) I have 35000 Old entries in the column and I have new entries 2000 everyweek these are appended. I need to check these 2000 entries from the total 37000 ( as we appened we get 35000+2000) and these delete operation need to be performed only on the newly appended 2000 entries but it should check the duplicates for entire column
Let me explain you clearly I have 2000 entries newly added,so Only these entries are to be checked for the duplicates from the 35000 entries and also from itself (2000 entries) and delete it if it is a duplicate and no duplicating operation should be performed on the 35000 entries old data.
I have found some codes but they are deleting even the duplicates of the 35000 entries. I have set the range but even though its not working.
Can anyone help me with the best code that takes less time?please thank you
Updating my question with the sample code I have
A B F G H I Y
PTY 39868.5 4 2 540 3 PTY39868.5425403
GTY 34446.1234 2 1 230 1 GTY34446.1234212301
PTY 3945.678 2 2 PTY3945.67822
GTY 34446.1234 2 1 230 1 GTY34446.1234212301
let us say these are old 35000 entries
Explaination to the above example.
The above are the 35000 entries. I have to check A,B,F,G,H,I columns for the dupes, if they are same I have to delete the row, I should not bother about the other columns c,d etc. so what I did is I have used one unused column Y and concatenated these 6 columns values into 1 at Y column using these
= A2 & B2 & F2 & G2 & H2 &I2 with the respective columns
Now checking the Y column for dupes and delete the entire row. as 2003 supports only for one column as far to my knowledge.
Notice that even the 35000 entries may have duplicates in it but I should not delete them. Example you can see the 2 and last row in my example code are dupes but I should not delete
as it is the old data.
A B F G H I Y
PTY 39868.5 4 2 540 3 PTY39868.5425403 'old
GTY 34446.1234 2 1 230 1 GTY34446.1234212301 'old
PTY 3945.678 2 2 PTY3945.67822 'old
GTY 34446.1234 2 1 230 1 GTY34446.1234212301 'old
PTY 3945.678 1 1 230 2 PTY3945.678112302 'new
PTY 39868.5 4 2 540 3 PTY39868.5425403 'new
PTY 3945.678 1 1 230 2 PTY3945.678112302 'new
Now note that New entry PTY (from last 2nd) is a duplicate of the original record(PTY at first) So I hava to delete it.And the last new entry is a duplicate of the new entry itself so I should delete it even that . SO in the above code I have to delete only the last 2 rows which are dupes of original record and also from it . But should not delete the GTY which is the dupe but which is in orginal record.
I think I gave a clear view now. Is concatenating them into one cell . Is it better way to approach? as conactenatin for 40000 entries taking just 2 seconds i think that doesnt matter but any more algorithms to these is much aprreciated
I heard counif treats 45.00 and 45.00000 as different is that right may be that was the problem with it? since I have decimal points in my data. I think I should do
= I2 & H2 & G2 & F2 & A2 & B2
which is better to concatenate? is this or the other i posted before?
BIG UPDATE:
It think the original questions threw me off - there may be a problem with the logic in the question. The following assumes you want to delete the cell, not entire row, for the duplicate entries.
If the 35000 old records do not include duplicates, then all you need to do is remove all duplicates from the entire column - so long as you start from row 1, you run no risk of deleting any of the 'old' rows since no duplicates exist in them.
Here is one way:
Sub UniqueList()
Application.ScreenUpdating = False
Dim vArray As Variant
Dim i As Long, j As Long, lastrow As Long
Dim dictionary As Object
Set dictionary = CreateObject("scripting.dictionary")
lastrow = Range("A" & Rows.Count).End(xlUp).Row
vArray = Range("A1:A" & lastrow).Value
On Error Resume Next
For i = 1 To UBound(vArray, 1)
For j = 1 To UBound(vArray, 2)
If Len(vArray(i, j)) <> 0 Then
dictionary(vArray(i, j)) = 1
End If
Next
Next
Columns("A:A").ClearContents
Range("A1").Resize(dictionary.Count).Value = _
Application.Transpose(dictionary.keys)
Application.ScreenUpdating = True
End Sub
If for some odd reason the 35000 old records DO include dupes and you only want to allow these 35000 records to do so, then you can use 2 dictionaries, but this would be an unusual case since you'd be treating the old records differently than new...
Sub RemoveNewDupes()
Application.ScreenUpdating = False
Dim lastRow As Long
Dim varray As Variant
Dim oldDict As Object, newDict As Object
Set oldDict = CreateObject("scripting.dictionary")
Set newDict = CreateObject("scripting.dictionary")
On Error Resume Next
lastRow = Range("A" & Rows.Count).End(xlUp).Row
'Add old entries to dictionary
varray = Range("A1:A35000").Value
For i = 1 To UBound(varray, 1)
oldDict.Add varray(i, 1), 1
Next
'Check for dupes
varray = Range("A35001:A" & lastRow).Value
For i = 1 To UBound(varray, 1)
If oldDict.exists(varray(i, 1)) = False Then
newDict.Add varray(i, 1), 1
End If
Next
'Delete and slap back on the unique list
Range("A35001", "A" & Rows.Count).ClearContents
Range("A35001").Resize(newDict.Count).Value = _
Application.Transpose(newDict.keys)
Application.ScreenUpdating = True
End Sub
Thanks to Reafidy for the advice and getting me to relook at this.
This is also a response to some of the comments and solutions made by other members so sorry if it does not straight away answer your question.
Firstly I believe that using excel in a database scenario that raw data and presentation data should be separated. This usually means a single worksheet with raw data and multiple other worksheets with presentation data. Then delete the raw data when necessary or archive.
When speed testing it is very difficult to get a level playing field in excel as there are many things that affect the results. Computer specs, available RAM etc.. Code must first be compiled before running any of the procedures. The test data is also important, when considering duplicates - how many duplicates vs how many rows. This sub loads some test data, altering the amount of rows vs the range of random numbers (duplicates) will give very different results for your code. I don't know what your data looks like so we are kind of working blind and your results may be very different.
'// This is still not very good test data, but should suffice for this situation.
Sub TestFill()
'// 300000 rows
For i = 1 To 300000
'// This populates a random number between 1 & 10000 - adjust to suit
Cells(i, "A").value = Int((100000 + 1) * Rnd + 1)
Next
End Sub
If we are talking about advanced filter vs an array & dictonary method then advanced filter will be quicker with a lower amount of rows but once you get above a certain amount of rows then the array method will be quicker. Then see what happens when you change the amount of duplicates.... :)
As a guideline or as a general rule using excels built in functions will be faster and I recommend always develop attempting to use these inbuilt functions, however there are often exceptions, like above when removing duplicates. :)
Deleting rows can be slow when looping if used incorrectly. If looping is used then it is important to keep synchronisation between code and the workbook out of the loop. This usually means read data to an array, loop through the data, then load the data from the array back to the presentation worksheet essentially deleting the unwanted data.
Sub RemoveDuplicatesA()
'// Copy raw data to presentation sheet
Range("A1", Cells(Rows.Count, "A").End(xlUp)).AdvancedFilter _
Action:=xlFilterCopy, CopyToRange:=Sheet2.Range("B1"), Unique:=True
End Sub
This will be the fastest method:
Sub RemoveDuplicatesB()
Dim vData As Variant, vArray As Variant
Dim lCnt As Long, lRow As Long
vData = ActiveSheet.UsedRange.Columns(1).value
ReDim vArray(0 To UBound(vData, 1), 0)
lCnt = 0
With CreateObject("Scripting.Dictionary")
For lRow = 1 To UBound(vData, 1)
If Not .Exists(vData(lRow, 1)) Then
vArray(lCnt, 0) = vData(lRow, 1): lCnt = lCnt + 1
.Add vData(lRow, 1), Nothing
End If
Next lRow
End With
'// Copy raw data to presentation sheet
Sheet2.Range("B1").Resize(lCnt).value = vArray
End Sub
Application transpose has a limitation of 65536 rows but as you are using 2003 you should be fine using it, therefore you can simplify the above code with:
Sub RemoveDuplicatesC()
Dim vData As Variant
Dim lRow As Long
vData = ActiveSheet.UsedRange.Columns(1).value
With CreateObject("Scripting.Dictionary")
For lRow = 1 To UBound(vData, 1)
If Not .exists(vData(lRow, 1)) Then
.Add vData(lRow, 1), Nothing
End If
Next lRow
'// Copy raw data to presentation sheet or replace raw data
Sheet2.Columns(2).ClearContents
Sheet2.Columns(2).Resize(.Count).value = Application.Transpose(.keys)
End With
End Sub
EDIT
Okay so #Issun has mentioned you want the entire row deleted. My suggestion was to improve your spreadsheet layout by having a raw data and presentation sheet which means you dont need to delete anything hence it would have been the fastest method. If you dont want to do that and would like to edit the raw data directly then try this:
Sub RemoveDuplicatesD()
Dim vData As Variant, vArray As Variant
Dim lRow As Long
vData = ActiveSheet.UsedRange.Columns(1).value
ReDim vArray(1 To UBound(vData, 1), 0)
With CreateObject("Scripting.Dictionary")
For lRow = 1 To UBound(vData, 1)
If Not .exists(vData(lRow, 1)) Then
varray(lRow, 0) = "x"
.Add vData(lRow, 1), Nothing
End If
Next lRow
End With
Application.ScreenUpdating = False
'// Modify the raw data
With ActiveSheet
.Columns(2).Insert
.Range("B1").Resize(lRow).value = vArray
.Columns(2).SpecialCells(xlCellTypeBlanks).EntireRow.Delete
.Columns(2).Delete
End With
Application.ScreenUpdating = True
End Sub
Before starting again from scratch your whole code, here are a few things you can try:
Optimize your VBA
There are several tips on the web about optimizing vba. In particular, you can do:
'turn off some Excel functionality so your code runs faster
'these two are especially very efficient
Application.ScreenUpdating = False
Application.Calculation = xlCalculationManual
'use these if you really need to
Application.DisplayStatusBar = False
Application.EnableEvents = False
'code goes here
'at the end, restore the default behavior
'calculate the formulas
Application.Calculate
Application.ScreenUpdating = True
Application.Calculation = xlCalculationAutomatic
Application.DisplayStatusBar = True
Application.EnableEvents = True
See here for more information
Optimize your algorithm
Especially when your inserting your COUNTIF formula, you can try to fill in instead of inserting the formula in each row.
On the deleting row part, you should try the solution I gave you in your previous thread: Delete duplicate entries in a column in excel 2003 vba to filter first on the True values and then to delete the visible cells. It is probably the fastest way.
[EDIT] Seems like Doc Brown's answer would be probably the best way to handle this (hey, this is a dictionary solution that wasn't written by Issun :)). Anyway, the VBA optimization tips are still relevant because this is quite a slow language.
OK, here's the advancedfilter method. Don't know if it is faster than the dictionary method. It would be interesting to know though, so let me know after you try it. I also included the delete portion so you would have to stop that portion if you want to do a true comparison. Also, you can make this a function instead of a sub and put in your variables, however you want to change it.
Sub DeleteRepeats()
Dim d1 As Double
Dim r1 As Range, rKeepers As Range
Dim wks As Worksheet
d1 = Timer
Set wks = ActiveSheet
Application.EnableEvents = False
Application.ScreenUpdating = False
'Make sure all rows are visible
On Error Resume Next
wks.ShowAllData
wks.UsedRange.Rows.Hidden = False
wks.UsedRange.Columns.Hidden = False
On Error GoTo 0
'Get concerned range
Set r1 = wks.Range("A1:A35000")
'Filter
r1.AdvancedFilter Action:=xlFilterInPlace, Unique:=True
'Get range of cells not to be deleted
Set rKeepers = r1.SpecialCells(xlCellTypeVisible)
On Error Resume Next
wks.ShowAllData
On Error GoTo 0
rKeepers.EntireRow.Hidden = True
'Delete all undesirables
r1.SpecialCells(xlCellTypeVisible).EntireRow.Delete
'show all rows
On Error Resume Next
wks.UsedRange.Rows.Hidden = False
On Error GoTo 0
Application.EnableEvents = False
Application.ScreenUpdating = False
Debug.Print Timer() - d1
End Sub
OK, here's a take on Doc's and Issun's use of Dictionaries. Before I wasn't convinced but after looking at it and testing it and comparing to advanced filter, I am convinced, dictionaries are better for this application. I don't know why Excel isn't faster on this point since they should be using faster algorithms, it's not the hiding, unhiding of the rows since that happens very quickly. So if anyone knows, let me know. This procedure takes just over 1 second on my slow computer:
Sub FindDupesAndDelete()
Dim d1 As Double
Dim dict As Object
Dim sh As Worksheet
Dim v1 As Variant
' Dim s1() As String
Dim rDelete As Range
Dim bUnion As Boolean
d1 = Timer()
bUnion = False
Set dict = CreateObject("Scripting.Dictionary")
Set sh = ActiveSheet
v1 = Application.Transpose(sh.Range("A1", "A" _
& sh.Cells.SpecialCells(xlCellTypeLastCell).row))
' ReDim s1(1 To UBound(v1))
Dim row As Long, value As String ', newEntry As Boolean
For row = 1 To sh.Cells.SpecialCells(xlCellTypeLastCell).row
value = v1(row)
If dict.Exists(value) Then
' newEntry = False
If bUnion Then
Set rDelete = Union(rDelete, sh.Range("A" & row))
Else
Set rDelete = sh.Range("A" & row)
bUnion = True
End If
Else
' newEntry = True
dict.Add value, 1
End If
' s1(row) = newEntry
Next
rDelete.EntireRow.Delete
' sh.Range("B1", "B" & UBound(v1)) = Application.Transpose(s1)
Debug.Print Timer() - d1
End Sub
Okay so now we have some more info here is a solution. It should execute almost instantly.
The code works by filling column y with your concatenate formula. It then adds all of column y to a dictionary and using the dictionary marks each row as a duplicate in column z. It then removes all the duplicates found after row 35000. Then finally it clears both column y and column z to remove the redundant data.
Sub RemoveDuplicates()
Dim vData As Variant, vArray As Variant
Dim lRow As Long
'// Get used range of column A (excluding header) and offset to get column y
With ActiveSheet.Range("A2", Cells(Rows.Count, "A").End(xlUp)).Offset(, 24)
'// Adds the concatenate formula to the sheet column (y)
.FormulaR1C1 = "=RC[-24]&RC[-23]&RC[-19]&RC[-18]&RC[-17]&RC[-16]"
'// Adds the formula results to an array
vData = .Resize(, 1).value
End With
'// Re dimension the array to the correct size
ReDim vArray(1 To UBound(vData, 1), 0)
'// Create a dictionary object using late binding
With CreateObject("Scripting.Dictionary")
'// Loop through each row in the array
For lRow = 1 To UBound(vData, 1)
'// Check if value exists in the array
If Not .exists(vData(lRow, 1)) Then
'// Value does not exist mark as non duplicate.
vArray(lRow, 0) = "x"
'// Add value to dictionary
.Add vData(lRow, 1), Nothing
End If
Next lRow
End With
'// Turn off screen updating to speed up code and prevent screen flicker
Application.ScreenUpdating = False
With ActiveSheet
'// Populate column z with the array
.Range("Z2").Resize(UBound(vArray, 1)) = vArray
'// Use error handling as speciallcells throws an error when none exist.
On Error Resume Next
'// Delete all blank cells in column z
.Range("Y35001", .Cells(Rows.Count, "Y").End(xlUp)).Offset(, 1).SpecialCells(xlCellTypeBlanks).EntireRow.Delete
'// Remove error handling
On Error GoTo 0
'// Clear columns y and z
.Columns(25).Resize(, 2).ClearContents
End With
'// Turn screen updating back on.
Application.ScreenUpdating = True
End Sub
NOTE: you can change all references "activesheet" to your sheet codename if you want.
NOTE2: it assumes you have headers and has left row 1 alone.
I have used your columns and test data as best I can. Here is the test fill I used:
Sub TestFill()
For i = 1 To 37000
With Range("A" & i)
.value = Choose(Int(2 * Rnd + 1), "PTY", "GTY")
.Offset(, 1).value = Round((40000 * (Rnd + 1)), Choose(Int(4 * Rnd + 1), 1, 2, 3, 4))
.Offset(, 5).value = Int(4 * Rnd + 1)
.Offset(, 6).value = Int(2 * Rnd + 1)
.Offset(, 7).value = Choose(Int(2 * Rnd + 1), "230", "540")
.Offset(, 8).value = Int(3 * Rnd + 1)
End With
Next i
End Sub
Lets say you have your entries in column A, and you want the result of your formula in column B (but much faster). This VBA macro should do the trick:
Option Explicit
Sub FindDupes()
Dim dict As Object
Dim sh As Worksheet
Set dict = CreateObject("Scripting.Dictionary")
Set sh = ActiveSheet
Dim row As Long, value As String
For row = 1 To sh.Cells.SpecialCells(xlCellTypeLastCell).row
value = sh.Range("A" & row).Text
If dict.Exists(value) Then
sh.Range("B" & row) = "False"
Else
sh.Range("B" & row) = "True"
dict.Add value, 1
End If
Next
End Sub
(Using a dictionary gives here almost linear running time, which should be a matter of seconds for 35.0000 rows, where your original formula had quadratic running time complexity).
Edit: due to your comment: you will have to fill the dictionary first by reading each entry at least once, that is something you cannot avoid easily. What you can avoid is to fill the rows of column B again when they are already filled:
Option Explicit
Sub FindDupes()
Dim dict As Object
Dim sh As Worksheet
Set dict = CreateObject("Scripting.Dictionary")
Set sh = ActiveSheet
Dim row As Long, value As String, newEntry As Boolean
For row = 1 To sh.Cells.SpecialCells(xlCellTypeLastCell).row
value = sh.Range("A" & row).Text
If dict.Exists(value) Then
newEntry = False
Else
newEntry = True
dict.Add value, 1
End If
If Trim(sh.Range("B" & row)) = "" Then sh.Range("B" & row) = newEntry
Next
End Sub
But I suspect this won't be much faster than my first solution.
Now that you have updated that you want the entire rows deleted and that the first 35000 rows are allowed to have dupes, here is a function that will do that for you. I think I came up with a clever method and it's blazing fast, too:
Sub RemoveNewDupes()
Application.ScreenUpdating = False
Dim lastRow As Long
Dim varray As Variant
Dim oldDict As Object, newDict As Object
Set oldDict = CreateObject("scripting.dictionary")
Set newDict = CreateObject("scripting.dictionary")
On Error Resume Next
lastRow = Range("A" & Rows.Count).End(xlUp).Row
'Add old entries to dictionary
varray = Range("A1:A35000").Value
For i = 1 To UBound(varray, 1)
oldDict.Add varray(i, 1), 1
Next
'Check for dupes
varray = Range("A35001:A" & lastRow).Value
For i = 35000 + UBound(varray, 1) To 35001 Step -1
If oldDict.exists(varray(i - 35000, 1)) = True Or _
newDict.exists(varray(i - 35000, 1)) = True Then
Range("A" & i).EntireRow.Delete
Else
newDict.Add varray(i - 35000, 1), 1
End If
Next
Application.ScreenUpdating = True
'A status message at the end for finishing touch
MsgBox UBound(varray, 1) - newDict.Count & _
" duplicate row(s) found and deleted."
End Sub
How it works:
First I store the 35000 cells into a dictionary file. Then I take a variant array of every cell 35001 onward and loop through them backwards to see if it's in the 35k dictionary or not, or that we haven't come across the value yet in the loop. If it finds that it's a dupe, it deletes the row.
The cool (if I may say) way that it does the row deletion is that when you create the varray, for say A35001 - A37000, it stores them as (1, 1) (2, 1) (...). So if you set "i" to the Ubound of the array + 35000 and step back to 35001, you will loop through all the additions backwardsfrom A37000 to A35001. Then when you want to delete the row, "i" is perfectly set to the row number the value was found in, so you can delete it. And since it goes backwards, it does not screw up the loop!