Using variable sheetname in VBA - vba

I'm a novice at VBA (just starting to learn). In my userform I have a combobox with values from 1 to 12(not string) representing the months. I want the user to pick a month and based on that, the multiple listboxes and labels I have placed should get filled by the relevant values in one of the 12 sheets representing each month. as I am a novice I have a lot of problems here but for starters the following lines do not seem to work on userform_initiate()
For j = 0 To 1
arr_trh(0, j) = Sheets("Sheet6").Cells(4, j + 1)
Next j
I can get it to work for a single sheet by using
arr_trh(0, j) = Sheet6.Cells(4, j + 1)
However, what I'm trying to do later on is to create a string and somehow concatenate "Sheet" and combobox value to pass on to Sheets() function.
Any help would be appreciated
Thanks

Rather than referring to the Sheet object like:
v = Sheet1.Range("A1")
use:
v = Sheets(1).Range("A1")
which you can index like:
v = Sheets(i).Range("A1")
where i is a variable.

I guess, my this answer will help you to figure out how to refer to sheets. Also, it tells about caveats of Index property.

Related

How can I add values from table 1 to values in the cells of table 2 and display the result in table 2 after?

I am looking at somewhat of a problem when trying to program a macro in Excel that is meant to add the number values from 2 tables and display the updated total in the second of the two.
I have just started learning how to program macros, so my knowledge is a little basic, but I am sure that there has to be a way to set this up in a more convenient way than what I am doing right now.
I have two tables, table 1 contains the data of the current week, which is entered manually, while table 2 is supposed to contain the total, which is calculated when clicking the macro button "Add".
I was able to fully set this up myself, using very basic code, which is why I am asking for help. At the moment the macro code is very messy and absolutely massive, I am looking at 242 declared variable values and a total of 925 lines of code.
The below is simplified and shortened, but basically how everything is working right now:
Each table contains up to 11 columns of data, with 11 rows each, so the macro is adding cells B2 to L12 to cells B29 to L39. The results are then being displayed as the total in cells B29 to L39.
The code right now:
Sub Add()
Dim Add As Integer
Dim var1 As Integer
Dim var2 As Integer
var1 = Range("B2").Value
var12 = Range("B29").Value
Add = var1 + var12
Range("B29").Select
ActiveCell.FormulaR1C1 = Add
Like I said, this does work and does exactly what I need, but this involves a lot of code and a huge potential for mistakes, as well as hours of writing it all out. Doesn't look very good either, and is even harder to follow/work through.
Can anybody help me streamline this, make it shorter? Is there any option to sum the whole thing up in fewer lines of code, fewer arguments?
Thanks in advance for any help.
UPDATE:
As mentioned before, the code I currently have does work as intended, but I would like to cut it down volume wise. There's just too much of it and I know it is possible to do the exact same with a lot less, I just don't know how.
I have structured the code to make it a little easier to read, the first section declaring the variables, the next chunk declaring the values (separated into blocks per row in the table) and lastly the calculating action of adding table A to table B and displaying the result in table B (again, separated into blocks per row in the table).
Thank again everyone for your help.
This is the complete code currently written
Try this out:
Dim cell as Range
For each cell in Range("B29:L39")
cell.Value = cell + cell.offset(-27).Value
Next
you could use PasteSpecial() method with xlPasteSpecialOperationAdd value for its Operation parameter
Range("B2:L12").Copy
Range("B29:L39").PasteSpecial Operation:=xlPasteSpecialOperationAdd
Application.CutCopyMode = False
or you could use arrays
Dim i As Long, j As Long
Dim var1 As Variant, var2 As Variant
var1 = Range("B2:L12").Value
var2 = Range("B29:L39").Value
For i = 1 To UBound(var1, 1)
For j = 1 To UBound(var1, 2)
var2(i, j) = var2(i, j) + var1(i, j)
Next
Next
Range("B29:L39").Value = var2

Comparing two lists in excel and extracting values missing from 2nd list - cannot be duplicated (also over two sheets)

Im working on a project report for work and I'm trying to find a way to compare two lists of project codes i.e "123456" and see whether the 2nd list is missing any new values that would've been entered into the first list. The lists are thousands of records long and so far people have been doing it manually (it hurts me knowing this) so I'm trying to make it automatic.
What I have tried is using an Array with a Index(Match(CountIF))) formula but I just cant seem to get it working.
My problem is that when I get the array to fill with what i want I then can't get it to not duplicate values (I need it to check the masterlist so it doesnt output something more than once into the output list).
I've also tried to give it a go with other formulas - but the lists can be thousands of records long so I cant do a cell for cell match as the list would be huge (that or my excel knowledge isnt good enough to know the easy solution).
Any help would be hugely appreciated.
Array might not be the best solution
I've checked quite a few other solutions but they don't quite deal with my issue and I don't have the skill to adapt them.
Here is one approach using VBA and arrays which is quicker than doing via the sheet. It checks each item in H to see it is present in J (and not the other way round). I assume that's what you want.
Sub x()
Dim v1, v2, v3(), i As Long, j As Long
v1 = Range("H2", Range("H" & Rows.Count).End(xlUp)).Value
v2 = Range("J2", Range("J" & Rows.Count).End(xlUp)).Value
ReDim v3(1 To UBound(v1, 1))
For i = LBound(v1) To UBound(v1)
If IsError(Application.Match(v1(i, 1), v2, 0)) Then
j = j + 1
v3(j) = v1(i, 1)
End If
Next i
Range("K2").Resize(j) = Application.Transpose(v3)
End Sub
Using an input box
Sub x()
Dim v1, v2, v3(), i As Long, j As Long
v1 = Application.InputBox("First list", Type:=8)
v2 = Application.InputBox("Second list", Type:=8)
ReDim v3(1 To UBound(v1, 1))
For i = LBound(v1) To UBound(v1)
If IsError(Application.Match(v1(i, 1), v2, 0)) Then
j = j + 1
v3(j) = v1(i, 1)
End If
Next i
Range("K2").Resize(j) = Application.Transpose(v3)
End Sub
A formula solution.
Note that I turned the first two ranges into Tables and changed the names. The formula is using structured references. This enables the formula to auto update if you add rows in the future.
=IFERROR(INDEX(ProjList1[#Data],AGGREGATE(15,6,1/ISNA(MATCH(ProjList1[#Data],ProjList2[#Data],0))*ROW(ProjList1[#Data]),ROWS($1:1))-ROW(ProjList1[#Headers])),"")
How does it work? Briefly:
MATCH generates an array of #NA! errors or a number.
ISNA turns that into an array of TRUE/FALSE where TRUE indicates an entry in table 1 that is NOT in table 2
Multiplying that array by the array of project list rows returns an array of error message vs row number
AGGREGATE small function ignores the error returns to give an ascending list of row numbers
INDEX then returns the appropriate entry from Table 1
ROW(ProjList1[#Headers]) is a correction so that the table may be located anyplace on the worksheet, and still return the correct row.
Not sure if you're trying to set this up so it will autoupdate in future, but as a stopgap:
Countif column next to list 1 that checks whether they appear in list 2...
... Feeding into a pivot that only shows those where the countif value is 0, in the "row" field to remove duplication?

How to use variables in regular MS excel expressions

My research shows that I need to use Visual Basic. I am a programmer/developer, but have never used VB so if anyone could dumb it down it would be appreciated.
Here's my working excel function:
=IF(MATCH(1,E1:DP1,0),D1,FALSE)
I want to loop a few of those numbers such that:
=IF(MATCH(141,E1:DP378,0),D378,FALSE)
THEN take my answers (which will be strings, because column D are all strings, the rest of the excel file are numbers)
=CONCAT
end goal: have 141 String arrays populated based on the data in my table.
I went ahead and made my first attempt at VBA like this:
Sub myFunc()
'Initialize Variables
Dim strings As Range, nums As Integer, answer() As Variant, listAnswers() As Variant
'set variables
strings = ("C1:C378")
nums = 141
i = 0
j = 0
ReDim Preserve answer(i)
ReDim Preserve listAnswers(j)
'answer() = {""}
'for each in nums
For counter = 0 To nums
ReDim Preserve listAnswers(0 To j)
'set each list of answers
listAnswers(i) = Join(answer(), "insertJSONcode")
j = j + 1
'for each in Stings
For Each cell In strings
If cell <> "" Then
ReDim Preserve answer(0 To i)
answer(i) = 'essentially this: (MATCH(2,E1:DP1,0),D1,FALSE)
i = i + 1
end If
next cell 'end embedded forEach
Next LCounter 'end for loop
'is this possible? or wrong syntax?
Range("A:A").Value = listAnswers() ' should print 141 arrays from A1 to A141
End Sub
EDIT:
Important note I do NOT need to call the sheet by Name. I've successfully written integer values to by excel sheet in column A without doing so.
Also, the VBA I wrote I was never intended to work, I know it's broken at least where answer(i) is supposed to write to something. I'm only putting that code there to show I was able to at least able to get into spitting distance of the proper logic and prove I've put some serious effort into solving the problem and give a rough starting point.
Here's an image of the excel format. Column C goes down to 378 and the numbers listed from E through DP are populated by a database. It consists of blank cells and numbers between 1 and 141.
Looking back at my if statement:
=IF(MATCH(2,E2:DP2,0),D2,FALSE)
If I were to type that exactly into cell B2 it would output the correct answer "text2". which is neat and all, but I need every instance of text 2 written out, then CONCAT those results. Easy so far, I could drag that down all the way through column B and have all of my "text" strings in one column, CONCAT that column and there's the answer. However I don't just need #2, I need each number between 1 and 141. Plus I want to avoid writing 141 columns with a CONCAT on top of each one.

Excel VBA: Copy the Data up to the last column that has value

The spreadsheet has multiple values in a cell.
What I'm trying to do is get that value found in a cell and paste it to another sheet and copy the other fields(columns) that belong to that value. How do I set the range in order copy the other fields(columns) up to the last column that has value? Thanks in advance.
For iRowGetProdCode = 0 To UBound(sSplitProdCode)
Sheets("Output").Cells(iRowCountOutput, 1).Value = sSplitProdCode(iRowGetProdCode)
iRowCountOutput = iRowCountOutput + 1
Next iRowGetProdCode
here is an idea how to discover an un-empty columns in the same row,
maybe you will find it useful and manipulate it for your needs:
Function LoopUntilLastColumn(ByVal Row As Integer)
Dim i As Integer
i = 1
Do While Cells(Row, i) <> ""
' do somthing
MsgBox (" I AM ALIVE COLUMN!")
i = i + 1
Loop
' you can also use the return value of the function.
LoopUntilLastColumn = i
End Function
I'm not exactly sure about what you're asking, but here are my three best guesses.
1.) Splitting delimited data from a single cell to columns
Without VBA: Use the "Text to Columns" function (Excel Ribbon:
Data|Data Tools).
With VBA: Use the split function MSDN (Related Post), then assign array values to target cells. Or parse your string manually with a loop.
2.) Finding the end of a continuous range
Without VBA: Use ctrl + arrow key
With VBA: Use the Range.End Property
3.) Looping through columns and rows
Used a nested loop:
For c = 1 to 5
For r = 1 to 20
Cells(r,c) = "Row = " & r & ", Column = " & C
Next
Next
Editing Suggestions (I don't have enough reputation to directly comment or edit)
This question as worded may be too specific for StackOverflow. Consider re-wording so that the problem can be understood in a general context and your question can be more useful to others.
Also, the wording is a little confusing. For example, use of the term "value" seems to change from referring to delimited data to referring to cell content in VBA. Likewise, it can be confusing to use "fields" or "columns" to describe the data if it's actually delimited text, so clarity on the data's state of existence would help.
It also seems to me that you've parsed the string on it's delimiter to an array, and that you're looping through this array to write the data in rows. I still can't see how exactly your question about setting a range fits in.

Inside a loop, how to indicate "all rows" when taking the mean of multiple columns (Visual Basic)

I have a loop wherein I take the mean of several columns of numbers with the same number of rows each.
The point of the loop is to capture these means in a new vector.
So for each loop I need to indicate "all rows". In matlab this would be easy, just use ":" But I can't figure out what the analogy is in VB. Please help! Thanks.
(Please advise me as to what I put in the code below where I have ALLROWS).
My attempt so far:
For i = 1 To CA
mrCA11(i) = Application.WorksheetFunction.Average(revCA11(**ALLROWS**,i))
Next i
In matlab this would be:
For i = 1:CA
mrCA11(i) = mean(revCA11(:,i));
Next i
EDIT: I've also tried this trick to no avail:
For j = 1 To CA
For i = 1 To s11
temp11(i) = revCA11(i, j)
Next i
mrCA11(j) = Application.WorksheetFunction.Average(temp11)
Next j
I get the error message: "Unable to get the Average property of the Worksheet Function class"
As everybody (Tim and shahkalpesh at least) pointed out, we need to understand what is revCall or more specifically, we need to understand how you want to give them ALL ROWS in argument.
Finding the last row (or column or cell)
A common Excel issue is to find the last used row / column / cell.
This will give you the end of your vector.
Excel give you several methods to deal with this:
xlTypeLastCell
Last cell used in the entire sheet (regardless if it's used in column A or not)
lastRow = ActiveSheet.Cells.SpecialCells(xlCellTypeLastCell).Row
End(xlUp)
Last cell used (including blanks in-between) in Column A is as simple as this:
lastRow = Range("A" & Rows.Count).End(xlUp).Row
End(xlToLeft)
Last cell used (including blanks in-between) in Row 1 is as simple as this:
lastRow = ActiveSheet.Cells(1, Columns.Count).End(xlToLeft).Row
UsedRange
Last cell used in the WorkSheet (according to Excel interpretation):
Set rangeLastCell = ActiveSheet.UsedRange
Using an array as argument
The methods above told you how to find the last row (if this is what you need). You can then easily create your vector and use it in your procedure revCA11.
You can either give an array as argument as Tim pointed out in his answer with this kind of statement:
myArray = ActiveSheet.Range("A1", Cells(lastRow, lastColumn).Value
Or you can use the integer (or long) to build your vector inside your procedure as simple as declaring a range:
Range("A1:A" & lastRow)
You might clarify exactly how revCA11 is declared/created, but maybe something along these lines might work for you:
Sub Tester()
Dim arr, x
arr = ActiveSheet.Range("A1:D5").Value '2-D array
'average each column
Debug.Print "Columns:"
For x = 1 To UBound(arr, 2)
Debug.Print x, Application.Average(Application.Index(arr, 0, x))
Next x
'average each row
Debug.Print "Rows:"
For x = 1 To UBound(arr, 1)
Debug.Print x, Application.Average(Application.Index(arr, x, 0))
Next x
End Sub