I found a nifty RegEx function that I'm using (see below). The function outputs an array. This is fine if I only ever need the first element of the array. But I'm trying to extract authors from citation data, so I need to pull multiple items from this output.
I know about arrays in Excel sheets. So I tried ={ReFind(A3,"[^()]+")}, selected an area and pressed ctrl+shift+enter, but it returns an error and {=ReFind(A3,"[^()]+")} just duplicates the formula across the cells.
Is there a way to have the function output the array to multiple cells using a formula? Can I get away without having to write some more vba?
Function ReFind(FindIn, FindWhat As String, _
Optional IgnoreCase As Boolean = False)
Dim i As Long
Dim matchCount As Integer
Dim RE As Object, allMatches As Object, aMatch As Object
Set RE = CreateObject("vbscript.regexp")
RE.Pattern = FindWhat
RE.IgnoreCase = IgnoreCase
RE.Global = True
Set allMatches = RE.Execute(FindIn)
matchCount = allMatches.Count
If matchCount >= 1 Then
ReDim rslt(0 To allMatches.Count - 1)
For i = 0 To allMatches.Count - 1
rslt(i) = allMatches(i).Value
Next i
ReFind = rslt
Else
ReFind = ""
End If
End Function
You need to return a 2-dimensional array that matches the range of calling cells (so that you are entering it as a multicell array formula (do not enter the { } just select the cells, enter the formula and press Control-shift-enter))
You are currently returning a 1-dimensional array
Related
I'm using VLOOKUP, in Calc, like this:
VLOOKUP(B11,G2:J7,4,0)
Normally when any of us uses this, we want to get the value in the cell this function finds. In this case, rather than the value, I'd like to get a string with the cell address in it instead or the row and column of that cell. For instance, if I have a double precision floating point value of 30.14 in cell J5 and that's the answer, rather than having it return 30.14, I want it to return something like "J5" or 9,4 or some other way for me to read the result in a macro.
I've tried using =ADDRESS() and =CELL("address", ) but I'm getting errors (=CELL() gives me '#REF!').
EDIT: I'm using this routine as a wrapper around VLOOKUP with a table of floating point numbers (which is why it returns a DOUBLE instead of getting the cell value as a STRING or something else). All I have to do is pass it the column I want to get the data from:
Function getLookup(valColumn as Integer) as Double
oDoc = ThisComponent
oSheet = oDoc.Sheets (workSheet)
rangeInfo = lookupTopLeft + ":" + lookupBottomRight
cellRange = oSheet.getCellRangeByName(rangeInfo)
oCell = oSheet.GetCellByPosition(dataCellColumn, dataCellRow)
searchValue = oCell.getString()
Mode = 0
svc = createUnoService( "com.sun.star.sheet.FunctionAccess" )
args = Array(searchValue, cellRange, valColumn, Mode)
getLookup = svc.callFunction("VLOOKUP", args)
End Function
Note I'm using some local variables in this. They're private, for the module only, so I don't have to change cell references in multiple places while I'm working on designing my spreadsheet. "lookupTopLeft" and "lookupBottomRight" are "G2" and "J7", the top left and bottom right cells for the data I'm working with. "dataCellColumn", and "dataCellRow" are the column and row coordinates for the source for the key I'm using in VLOOKUP.
(#JohnSUN, I think this may be modified from an answer you provided somewhere.)
I'd like to be able to do a similar wrapper routine that would return the column and row of a cell instead of the value in the cell.
One of many possible options:
Option Explicit
Const lookupTopLeft = "G2"
Const lookupBottomRight = "J7"
Const dataCellColumn = 1
Const dataCellRow = 10
Const workSheet = 0
Function getCellByLookup(valColumn As Integer) As Variant
Dim oSheet As Variant, cellRange As Variant, oCell As Variant
Dim oColumnToSearch As Variant
Dim oSearchDescriptor As Variant
Dim searchValue As String
Dim nRow As Long
oSheet = ThisComponent.getSheets().getByIndex(workSheet)
cellRange = oSheet.getCellRangeByName(lookupTopLeft + ":" + lookupBottomRight)
searchValue = oSheet.GetCellByPosition(dataCellColumn, dataCellRow).getString()
Rem If we are looking not for a value, but for a cell,
Rem then using VLOOKUP is unnecessary, a simple Find is enough
oColumnToSearch = cellRange.getCellRangeByPosition(0, 0, 0, _
cellRange.getRows().getCount()-1) ' Resize full range to one first column
Rem Set search params
oSearchDescriptor = oColumnToSearch.createSearchDescriptor()
oSearchDescriptor.setSearchString(searchValue)
oSearchDescriptor.SearchType = 1 ' Search in Values!
Rem Try to find searchValue in oColumnToSearch
oCell = oColumnToSearch.findFirst(oSearchDescriptor)
If Not IsNull(oCell) Then ' Only if the value was found
nRow = oCell.getRangeAddress().StartRow
Rem Offset oCell to valColumn
oCell = cellRange.getColumns().getByIndex(valColumn-1).GetCellByPosition(0,nRow)
getCellByLookup = Replace(oCell.AbsoluteName, "$", "")
Else ' If the value from B11 is not found - warn about it
getCellByLookup = "Not found"
EndIf
End Function
I need the most efficient way to create an Excel function in VBA that removes the duplicates in a cell:
The input cell (A1) should contain a text like that:
"First_element, Second_element, Third_element, Second_element, Fourth_element"
I need a formula such as:
= REMOVEDUPLICATES(A1)
That produces the following output in B2:
"First_element, Second_element, Third_element, Fourth_element"
It is important that every element is followed by a comma-and-space ", " except the final element.
Try this function
Function RemoveDuplicates(inp As String)
Dim dict As Object
Const DELIMITER = ","
Set dict = CreateObject("Scripting.Dictionary")
Dim vdat As Variant
vdat = Split(inp, DELIMITER)
Dim i As Long
For i = LBound(vdat) To UBound(vdat)
If dict.Exists(vdat(i)) Then
Else
dict.Add vdat(i), vdat(i)
End If
Next i
vdat = dict.Keys
RemoveDuplicates = Join(vdat, DELIMITER)
End Function
Context:
I have several lists in my sheet (1 column wide, 1-10 rows long). When I right click a cell in these lists, I can do several options, that all work well. I have given a name to the cell at the top of each of these lists (ex. Cell A1 has been given the name cell_1, B10 is names cell_2, etc).
I would like to know if the cell I am right clicking on is the one at the top of the list; is it named "cell_(number)"? If it is not, it checks the cell on top of that one. Does it have a name that starts with "cell_"? If not, check the one on top, etc. Until I can figure out the user clicked on an element of WHICH list.
TL;DR The actual question
I can use ActiveCell.Address, which gives me something like "A1" whether or not I have assigned a name to that cell. ActiveCell.Name gives "Sheet1!A1", so it's not much better. Any idea how to get it to return the name I have assigned instead?
Create a UDF to test the application names, it's less efficient but contains error handling within the function itself:
Sub SO()
'// Example how to call function
Debug.Print GetCellName(Range("A1"))
End Sub
Function GetCellName(myCell As Excel.Range) As Variant
Dim nameCheck As Variant
For Each nameCheck In Application.Names
If Replace(Replace(Replace(nameCheck, "=", ""), "'", ""), "!", "") = _
CStr(myCell.Parent.Name & myCell.Address) Then
GetCellName = CStr(nameCheck.Name)
Exit Function
End If
Next
GetCellName = CVErr(Excel.xlErrName)
End Function
Note you can also use this function in a worksheet cell like so:
=GetCellName(A1)
Perhaps this would work. This function returns the names assigned to a cell (or bigger range for that matter). If there's more than one name, it returns it as an array for array formula...or the user can supply an index to return only the desired name position
Public Function CellIsInRangeNames(sheetname As String, checkRange As Range, Optional itemNumber As Variant) As Variant
Dim oNM As Name
Dim oSht As Worksheet
Dim isect As Range
Dim namesCollection() As Variant
Set oSht = Worksheets(sheetname)
Dim i As Integer
i = -1
For Each oNM In oSht.Names
Set isect = Application.Intersect(Range(oNM.Name), checkRange)
If Not isect Is Nothing Then
i = i + 1
ReDim Preserve namesCollection(0 To i)
namesCollection(i) = CStr(oNM.Name)
End If
Next oNM
If i = -1 Then
'didn't find any
CellIsInRangeNames = xlErrName
ElseIf Not IsMissing(itemNumber) Then
'user wanted this instance only
If (itemNumber - 1 > UBound(namesCollection)) Or (itemNumber - 1 < LBound(namesCollection)) Then
CellIsInRangeNames = xlErrValue
Else
CellIsInRangeNames = namesCollection(itemNumber - 1)
End If
Else 'here's the list as an array
CellIsInRangeNames = namesCollection
End If
End Function
I have an excel formula:
=SplitKey(GetSysCd(INDEX([ReportValue],MATCH("mtr_make_model",[FieldName],0)),INDEX([ListName],MATCH("mtr_make_model",[FieldName],0))), 0)
which is running a few subroutines in VBA, but mainly matching values and inserting those values into a cell. When it finds a value for "mtr_make_model" it runs and matches the values inside a sys codes table. The issue I am having is that it is calculating once and then it removes the formula and now has solely the value... In the event that I go to the mtr_make_model field and change the value, the formula does not recalculate. Has anyone heard of this happening? Is this due to something in the VBA code? How do I make that formula stay put and if certain values change, the formula recalculates?
Thanks in advance.
Here are the two functions:
Public Function GetSysCd(ByVal name As String, sysCdTableName As String) As String
Dim r As Integer
Dim sysCdTable As Range
Dim nameList As Variant
Dim sysCd As String
On Error GoTo GetSysCd_Error
Set sysCdTable = Worksheets("sys_cd").Range(sysCdTableName)
nameList = WorksheetFunction.Index(sysCdTable, 0, 2)
r = WorksheetFunction.Match(name, nameList, 0)
sysCd = WorksheetFunction.Index(sysCdTable, r, 1)
GetOutOfHere:
On Error GoTo 0
GetSysCd = sysCd
Exit Function
GetSysCd_Error:
sysCd = ""
GoTo GetOutOfHere
End Function
Public Function SplitKey(s As String, v As Integer)
Dim aString As Variant
Dim r As Integer
If Len(s) > 2 Then
aString = Split(s, "_")
If v = 0 Or v = 1 Then
SplitKey = aString(v)
Else
SplitKey = aString(0)
End If
Else
SplitKey = ""
End If
End Function
I don't think the functions are relevant at this point, but rather just a matter of the function not recalculating when a variable in the formula changes...
The problem could be that Excel only recalculates functions when one of their arguments changes, and your GetSysCd function is referring to a range that is not in its argument list
Set sysCdTable = Worksheets("sys_cd").Range(sysCdTableName)
where sysCdTableName is just a string rather than a reference.
You can make the functions recalculate in real time by adding Application.Volatile True to the top of each function.
I have been trying to create a function to retrieve column titles found in row four in an excel sheet. This is what I have so far, can anybody help me please?
Sub Test_Click()
Dim text As String
Dim titles(200) As String
Dim nTitles As Integer
For i = 1 To 199
If Trim(Sheets("Sheet1").Cells(4, i).Value) = "" Then
nTitles = i - 1
Exit For
End If
titles(i - 1) = Sheets("Sheet1").Cells(4, i).Value
Next
For i = 0 To nTitles
Sheets("Sheet1").Cells(20 + i, 1).Value = titles(i)
Next
End Sub
You need to make an array function for this. So your function will take in inputs through a range
Function ReturnArray(Input as Range) as Variant
' Do stuff with the Input range
Dim Output(m,n) as Variant
'Loop through m,n to fill in the output values as you would in a range
ReturnArray = Output
End Function
And when you put in the function in excel, type it in the cell after highlighting where you want the output and press Ctrl-Shift-Return
Just as you write a Sub you can write a Function, just substitute the words at the beginning and at the end of your code.
Now, about how to return the values, obviously it will be an array, so you'll need to declare the array, set its size, fill its cells and return it. This can be done like this:
Function yourFunction() as String()
' You already have an array named "titles" which stores the values you want
' to return. Fill it exactly as you do in your original code.
yourFunction = titles ' This is the way to return the array.
End Function
If you want to use this function in a worksheet (as a formula), remember that this is an array-function, so you'll need to press Ctrl+Shitf+Enter after you enter the function in the cell instead of just [Enter].