I am trying to multiply values in two columns of a table and display it in another column.
Since this process has to be repeated for multiple columns, how should I go about referencing columns using column headers? Any help would be appreciated.
The logic would be as follows:
ListColumns(x) = ListColumns(x - 1) * ListColumns(x - 3)
This is within a loop where the value of x changes.
There are multiple ways of achieving what you are after.
1st: Let's suppose x = 4, so you want to multiply column A and C and store result in D column. Simply put formula = A1 * C1 in D1 and drag it all the way down.
2nd: Using VBA, more generic:
Sub MultiplyCoulmns()
Dim resultColumn As Long 'this is x
resultColumn = 4 'just for example, change it to whatever you need
'alternatively, specify column header
Dim header As String
header = "SomeColumn"
resultColumn = Application.WorksheetFunction.Match(header, Range("A1:Z1"), 0)
Dim i As Long, lastRow As Long
lastRow = Cells(Rows.Count, resultColumn).End(xlUp).Row
For i = 1 To lastRow
Cells(i, resultColumn) = Cells(i, resultColumn - 1) * Cells(i, resultColumn - 3)
Next
End Sub
Related
Hi could someone enlighten me with some VBA code to insert formula =LEFT(H2,5) into column M and then stop at the last row of data.
The data it will be referencing will be inserted from the web so when i refresh the data pull the rows could be more or less so it can't be a fixed without using VB
Thanks
Rhys
You don't need a loop for this:
Sub qwerty()
Dim N As Long, r As Range
N = Cells(Rows.Count, "H").End(xlUp).Row
Set r = Range("M2:M" & N)
r.Formula = "=LEFT(H2,5)"
End Sub
You will find that the addresses in the formulas adjust just like in copy/paste.
Would a while loop work for you?
Dim i As Integer
i = 2 'starting row number
While Cells(i, 1).Value <> "" 'Empty row
Cells(i, 13).Formula = "=LEFT(H2,5)" 'replace this with something for that row, concatenating i to H will work i think.
i = i + 1
Wend
You'll also want to put this code to whenever the data is refreshed so it inserts the formula to all rows again.
Dim x As Long
x = Application.CountA(ActiveSheet.Columns(13))
ActiveSheet.Cells(2, 13) = "=LEFT(H2,5)"
ActiveSheet.Cells(2, 13).Resize(x - 1).Formula = ActiveSheet.Cells(2, 13).Formula
use excel function CountA to get the total number of row that you need to populate and assign that number to x
then put the actual formula on cells M2 then copy the formula until the last row using resize function
in my data there are more than a thousand different six digit numbers that are reoccurring in no specific pattern. I need to find all six digit codes that exist in column A and for each number. For example 123456, then find summarize the value in column B for every row that has 123456 in column A. My code is not very effective but the runtime is not a problem if I run with only 10 rows. However, in the real data sheet there are 80 000 rows and my code will take to much time. Can someone help me edit my code but removing certain loops within loops or some stop conditions. I'm new to VBA and can't do it myself in the limited time I have.
Sub Test2()
Dim summa As Long
Dim x As Long
Dim condition As Boolean
Dim lRows As Long
Dim k1 As Integer
Dim i As Long
x = 1
Worksheets("Sheet1").Activate
For i = 100000 To 999999
k1 = 1
lRows = 10
condition = False
While k1 <= lRows
If Cells(k1, "A").Value = i Then
condition = True
End If
k1 = k1 + 1
Wend
If condition = True Then
Cells(x, "F").Value = Application.SumIf(Range("A:A"), CStr(i), Range("B:B"))
Cells(x, "E").Value = i
x = x + 1
End If
Next i
MsgBox "Done"
End Sub
You don't need VBA for this task. Follow these steps.
Insert a blank column C in a copy of the original data sheet.
Insert a SUMIF formula, like =SUMIF(A:A, A2, B:B) in C2 and copy all the way down.
Now all items 123456 will have the same total in column C
Copy column C and Paste Values (to replace the formulas with their values).
Delete column B.
Remove duplicates.
I have string data in Column A, I have number values in Column B. I also have Columns O to Z which are currently blank - these columns have headers 1, 2, 3 etc. (i.e. cell references O2=1, P2=2, Q2=3 etc.)
There is a number value in cell C1.
If C1 = matches any of the column headers (O-Z) then copy the data from Column B to the corresponding column.
Example: If C1 = 4 and cell R2 is 4, the data from Column B would populate in Column R.
How do I achieve this with VBA? Thanks in advance.
Try something like this...
Sub CopyDataDynamically()
Dim lr As Long, num As Long
Dim rng As Range
lr = Cells(Rows.Count, 1).End(xlUp).Row
Set rng = Range("O2")
num = Range("C1").Value
If num > 0 And num <= 12 Then
Range("B2:B" & lr).Copy
rng.Offset(0, num - 1).PasteSpecial xlPasteValues
End If
End Sub
If you want to achieve this with the help of a formula, try this...
In O2
=IF($B2="","",IF(O$1=$C$1,$B2,""))
and then copy it across and down as far as there is data in column B.
I have a excel sheet which I am populating using a VB program. The output sheet can have variable number of rows but has 6 columns (A:F). Now I want the column G to have hex2dec of all the rows in column A. Here's an example: Say column A has 400 rows (A1:A400) then I want G1:G400 to have values HEX2DEC(A1:A400). But this is just an example the rows can vary. I have this code so far:
Sub DataMod()
Dim i As Long, R3 As Long
R3 = 1
For i = 1 To sheet.UsedRange.Rows.Count
sheet.Cells(i, 7).Formula = "=HEX2DEC" & sheet.Cells(R3, 1)
R3 = R3 + 1
Next i
End Sub
But it's not working.
Review your HEX2DEC formula string
it doesn't include the necessary ()
the Cells() would return the value of the target cell, not its address (i.e. the result would be =HEX2DEC(1234) instead of =HEX2DEC(A1) - which may or may not be a problem
you could use variable i instead of R3, they both increment from the same starting point at the same increment
I recommend to use FormulaR1C1, you do not have variants there
Sub DataMod()
Dim C As Range
For Each C In ActiveSheet.UsedRange.Columns(1).Cells
C(1, 7).FormulaR1C1 = "=HEX2DEC(RC[-6])"
Next C
End Sub
The danger of UsedRange is that it might include any header rows, so you might want to get around this by selecting the input range manually before you fire your Sub() and work with the Selection object, e.g.
For Each C In Selection.Columns(1).Cells
Try This:
Sub DataMod()
' Get the number of rows used in Column A:
Dim NumRows as Long
NumRows = Range("A1").End(xlDown).Row
' Put the formulas in Column G all at once:
Range("G1:G" & NumRows).FormulaR1C1 = "=Hex2Dec(RC1)"
End Sub
I am looking to update the last column of one data table with the last column of another data table. This is part of a bigger vba code. The first table spreads from A2 to column K and row "lastrpivot1". The second goes from A1001 to column K and row "lastrpivot2". Beginning with the first row of table 2 (row1001) i have to find the equivalent row in table 1 based on the values in cells A to E.
So cells A to E or frow 1001 have to be compared to cells A to E of row 2, then row 3, then row 4... until a match if found or until row "lastrpivot1". When a match is found, the value in K must return to the K value of row 1001. EX: if AtoE of row 1001 match row AtoE of row 65, then copu K65 to K1001. there shound not be more than 1 match from each table. and if there is no match there is nothing to return.
Then we start this all over for row 1002 (second row of second chart), then 1003, 1004... to lastrpivot2.
I do use vba but i do not know all the functions. this is probably why i cant figure this out.
Thnka you
In Cell K1001, try this:
=IF((A1001&B1001&C1001&D1001&E1001)=(A1&B1&C1&D1&E1),K1,"")
Then drag the formula down.
This compares the entire row 1001 to the entire row 1, which is what you're asking for.
If you intend to find the matching row like a VLOOKUP (you kind of imply this, but it is not clear that this is your intention) then you will need to use VBA to do this.
Something like (untested):
Sub MatchTables()
Dim tbl1 as Range, tbl2 as Range
Dim var1() as Variant, var2() as Variant, v as Variant
Dim r as Long, matchRow as Long
Set tbl1 = Range("A1:K500") '## Modify as needed
Set tbl2 = Range("A1001:K15001") '## Modify as needed
ReDim var1(1 to tbl1.Rows.Count)
ReDim var2(1 to tbl2.Rows.Count)
'## store the range values, conctaenated, in array variables:
For r = 1 to tbl1.Rows.Count
var1(r) = tbl1(r,1) & tbl1(r,2) & tbl1(r,3) & tbl1(r,4) & tbl(r,5)
Next
For r = 1 to tbl2.Rows.Count
var2(r) = tbl2(r,1) & tbl2(r,2) & tbl2(r,3) & tbl2(r,4) & tbl2(r,5)
Next
r = 0
For each v in Var2
r = r+1
'## Check to see if there is a complete match:
If Not IsError(Application.Match(v, var1, False)) Then
matchRow = Application.Match(v, var1, False)
'## If there is a match, return the value from column K in the first table:
tbl2.Cells(r,11).Value = tbl1.Cells(matchRow,10).Value
Else:
tbl2.Cells(r,11).Value = vbNullString
End If
Next
End Sub