Is it possible to to declare Cell position with using variables from an array?
Here is my old code which works perfectly but what if I need many more Cells? (I make it shorter). This code by pressing button sets Value of selected cells to zero.
Sub ResetButt01_Click()
Cells(12, 5).Value = 0
Cells(12, 13).Value = 0
Cells(12, 21).Value = 0
Cells(19, 4).Value = 0
Cells(19, 6).Value = 0
Cells(19, 12).Value = 0
End Sub
And here is my attempt to do it by using Array:
Sub ResetButt01_Click()
Dim myRow() As Variant
Dim myCol() As Variant
myRow = Array(12, 12, 12, 19, 19, 19)
myCol = Array(5, 13, 21, 4, 6, 12)
Cells(myRow, myCol).Value = 0
End Sub
But this code doesn't work. So I tried this:
Sub ResetButt01_Click()
Dim myRow() As Variant
Dim myCol() As Variant
Dim r As Integer
Dim c As Integer
myRow = Array(12, 12, 12, 19, 19, 19)
myCol = Array(5, 13, 21, 4, 6, 12)
r = myRow
c = myCol
Cells(r, c).Value = 0
End Sub
But again it doesn't work. Do you have any idea how to put values to array and this use these values as variables to define the position of Cells?
You can create a comma separated string with cell addresses:
Const myCells As String = "A1, B2, C3, D4, E5, F6"
Range(myCells).Value = 0
You could also create named range myCells2 and simply call:
Range("myCells2").Value = 0
The array approach you have used is actually much slower than writing to the range, as you are writing to each indvidual cell
You would be better off defining a range, and writing to it in a sigle shot, code is also easier to read. On my testing this is 4x faster than the answer you have selected.
Sub ResetButt02_Click()
Dim rng1 As Range
Set rng1 = Range("E12,M12,U12,D19,E19,l19")
rng1.Value2 = vbNullString
End Sub
update
When setting a single range there is a limit of 255 characters. Either work with two ranges as you did, or use Union to mesh the two ranges together:
Sub ResetButt01_Kliknút()
Dim rng1 As Range
Dim rng2 As Range
Set rng1 = Range("C33,C40,C67,C74,C88,C95,D19,D53,E12,E26,E33,E40,E47,E60,E67,E74,E81,E88,E95,E102,F19,F53,G33,G40")
Set rng2 = Range("G67,G74,G88,G95,K53,K60,L19,L26,L88,M12,M33,M40,M47,M53,M60,M67,M74,M81,M95,M102,N19,N26,N88,O53,O60,T26,T33,T67,T74,T81,T88,U12,U19,U40,U47,U53,U60,U95,U102,V26,V33,V67,V74,V81,V88")
Set rng2 = Union(rng1, rng2)
rng2.Value2 = 0
End Sub
Using Arrays
Sub ResetButt01_Click()
Dim myRow() As Variant
Dim myCol() As Variant
Dim i As Long, R As Long, C As Long
myRow = Array(12, 12, 12, 19, 19, 19)
myCol = Array(5, 13, 21, 4, 6, 12)
For i = 0 To 5
R = myRow(i)
C = myCol(i)
Cells(R, C).Value = 0
Next i
End Sub
Try using cycle:
Option Explicit
Sub ResetButt01_Click()
Dim myRow() As Variant
Dim myCol() As Variant
Dim i As Integer
myRow = Array(12, 12, 12, 19, 19, 19)
myCol = Array(5, 13, 21, 4, 6, 12)
For i = LBound(myRow) To UBound(myRow)
Cells(myRow(i), myCol(i)).Value = 0
Next i
End Sub
M.
Related
Here is what I'm trying to accomplish: Cell B2: Start Date and Cell B3: End Date
Example:
B2 --> 01/01/2019
B3 --> 01/03/2019
I have an array with the week numbers between these two dates. Example array (1, 2, 3, 4, 5, 6, 7, 8, 9), including the last week of February(week 9). I'm Working on a Planning excel that's why I'm considerating also week 9 (We had some issues in the last post, that's why I'm explaining it)
Here is my code for obtaining this array
Sub FillCal()
Application.ScreenUpdating = False
Application.DisplayAlerts = False
Dim StartDate As Range, EndDate As Range
Dim NoOfWeeks As Long
Dim arr As Variant
Dim i As Long
With Worksheets("Foglio1")
Set StartDate = .Range("B2")
Set EndDate = .Range("B3")
End With
NoOfWeeks = WorksheetFunction.RoundUp((EndDate.Value2 - StartDate.Value2) / 7, 0)
ReDim arr(1 To NoOfWeeks)
For i = 1 To NoOfWeeks
arr(i) = i
Next i
Application.DisplayAlerts = True
Application.ScreenUpdating = True
End Sub
What I'm trying to do is: Starting from Cell D4, put the 1st value of the array arr in it and merge cells E4 and F4 with it(so cells D4, E4, F4 merged with value 1), put next value of the array(in this case Cell G4 and value 2) in it and merge the 2 other cells on the right so it would be Cells G4, H4, I4 with value 2 and so on... till last value of the array (Sorry for bad English I will attach a photo for better understanding)
Here is the output that I would like to obtain:
So Its basically: merge every 3 cells.
Since an user asked for it, here is how I try to merge...
i = wks.Range("A3").End(xlToRight).Row
Set rngMerge = wks.Range("A3:XZ3" & i) ' Find last row in column A
With wks
checkAgain:
For Each rngCell In rngMerge
If rngCell.Value = rngCell.Offset(0, 1).Value And IsEmpty(rngCell) = False Then
Range(rngCell, rngCell.Offset(0, 1)).Merge
rngCell.VerticalAlignment = xlCenter
rngCell.HorizontalAlignment = xlCenter
rngCell.BorderAround ColorIndex:=1
GoTo checkAgain
End If
Next
End With
Starting for D4 as a "given", point and merging any 3 cells as far as there is something in the array, this is what I have managed to build:
This is the code:
Sub TestMe()
Worksheets(1).Cells.Delete
Dim myCellToStart As Range
Set myCellToStart = Worksheets(1).Range("D4")
Dim myArray As Variant
myArray = Array(1, 2, 3, 4, 5, 6, 7, 8, 9)
Dim myVar As Variant
Dim myCell As Range
Set myCell = myCellToStart
For Each myVar In myArray
Set myCell = Worksheets(1).Range(myCell, myCell.Offset(, 2))
myCell.Merge
BorderMe myCell
myCell = myVar
Set myCell = myCell.Offset(, 1)
Next myVar
End Sub
The "trick" is to define the range to be merged correctly. It is carried out with Set myCell = Worksheets(1).Range(myCell, myCell.Offset(, 2)) and with Set myCell = myCell.Offset(, 1) to mark the new start.
And this is the "Bordering" function:
Public Sub BorderMe(myRange As Range)
Dim cnt As Long
For cnt = 7 To 10 '7 to 10 are the magic numbers for xlEdgeLeft etc
With myRange.Borders(cnt)
.LineStyle = xlContinuous
.Weight = xlMedium
End With
Next
End Sub
You actually don't need to use an array, since you are assigning NoOfWeeks as a variable;
Just replace this portion of your first code...
ReDim arr(1 To NoOfWeeks)
For i = 1 To NoOfWeeks
arr(i) = i
Next i
With this code...
x = 4
For i = 1 To NoOfWeeks
With Cells(3, x)
.Value = i
.Resize(, 3).Merge
.HorizontalAlignment = xlCenterAcrossSelection
End With
x = x + 3
Next i
I am currently trying to combine 46 arrays in to a single array. I have scoured the internet, to no prevail and am hoping someone here can help. I did find the below page, but I need to be able to look through each element of the new array in a nested for loop, so using the method below doesn't quite get me to my end goal.
Excel vba - combine multiple arrays into one
Basically, I need to combine my set of 46 arrays in such a way that I can then loop through each element using a nested for loop. ie.
Set of arrays:
myArray1 = (1, 2, 3, 4)
myArray2 = (5, 6, 7)
myArray3 = (8, 9)
myArray4 = (10, 11, 12, 13, 14)
.
.
.
myArray46 = (101, 102, 103)
Combine them to form new array:
myNewArray = (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14... 101, 102, 103)
Loop through in nested for loop to check each element against my main array:
For i = LBound(mainArray) to UBound(mainArray)
For j = LBound(myArray) to UBound(myArray)
If mainArray(i) = myArray(j) Then
'do something
End If
Next j
Next i
Any help and/ or guidance with this is greatly appreciated!
Since you write in your comments that your end goal is to create an array of unique elements, you might be best served using a dictionary, where you can test for uniqueness as you add each element to dictionary. Something like:
Option Explicit
Function uniqueArr(ParamArray myArr() As Variant) As Variant()
Dim dict As Object
Dim V As Variant, W As Variant
Dim I As Long
Set dict = CreateObject("Scripting.Dictionary")
For Each V In myArr 'loop through each myArr
For Each W In V 'loop through the contents of each myArr
If Not dict.exists(W) Then dict.Add W, W
Next W
Next V
uniqueArr = dict.keys
End Function
Sub tester()
Dim myArray1, myArray2, myArray3, myArray4, myArray5
myArray1 = Array(1, 2, 3, 4)
myArray2 = Array(5, 6, 7, 8)
myArray3 = Array(9, 10, 11, 12, 13, 14)
myArray4 = Array(15, 16)
myArray5 = Array(1, 3, 25, 100)
Dim mainArray
mainArray = uniqueArr(myArray1, myArray2, myArray3, myArray4, myArray5)
End Sub
If you run Tester, you will see mainArray contains:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
25
100
Using your data this is how to create one array out of many:
Public Sub TestMe()
Dim myA, myB, myC, myD, myE
myA = Array(1, 2, 3, 4)
myB = Array(5, 6, 7)
myC = Array(8, 9)
myD = Array(10, 11, 12, 13, 14)
myE = Array(101, 102, 103)
Dim myCombine As Variant
Dim myNew() As Variant
Dim myElement As Variant
Dim myArr As Variant
Dim cnt As Long
myCombine = Array(myA, myB, myC, myD, myE)
For Each myArr In myCombine
For Each myElement In myArr
ReDim Preserve myNew(cnt)
myNew(cnt) = myElement
cnt = cnt + 1
Next
Next
For cnt = LBound(myNew) To UBound(myNew)
Debug.Print myNew(cnt)
Next cnt
End Sub
The "building" of the new array is facilitated through ReDim Preserve, which keeps the old values in the array whenver the dimension of the array changes. And if you want to do something with these arrays, you may use 3 nested loops (a bit slow) and have some check:
Dim cnt2 As Long
For cnt = LBound(myNew) To UBound(myNew)
For cnt2 = LBound(myCombine) To UBound(myCombine)
For Each myElement In myCombine(cnt2)
If myElement = myNew(cnt) Then
Debug.Print myElement & vbTab & " from " & vbTab & cnt2
End If
Next myElement
Next cnt2
Next cnt
This is what you get on the immediate window:
1 from 0
2 from 0
3 from 0
4 from 0
5 from 1
6 from 1
7 from 1
8 from 2
9 from 2
10 from 3
11 from 3
12 from 3
13 from 3
14 from 3
101 from 4
102 from 4
103 from 4
Alternate 'brick-by-brick' approach.
Option Explicit
Sub combineArrays()
Dim myArray1 As Variant, myArray2 As Variant, myArray3 As Variant
Dim myArray4 As Variant, myArray46 As Variant
ReDim mainArray(0) As Variant
myArray1 = Array(1, 2, 3, 4)
myArray2 = Array(5, 6, 7)
myArray3 = Array(8, 9)
myArray4 = Array(10, 11, 12, 13, 14)
'...
myArray46 = Array(101, 102, 103)
mainArray = buildMainArray(myArray1, mainArray)
mainArray = buildMainArray(myArray2, mainArray)
mainArray = buildMainArray(myArray3, mainArray)
mainArray = buildMainArray(myArray4, mainArray)
mainArray = buildMainArray(myArray46, mainArray)
ReDim Preserve mainArray(UBound(mainArray) - 1)
Debug.Print Join(mainArray, ",")
End Sub
Function buildMainArray(arr As Variant, marr As Variant)
Dim i As Long
For i = LBound(arr) To UBound(arr)
marr(UBound(marr)) = arr(i)
ReDim Preserve marr(UBound(marr) + 1)
Next i
buildMainArray = marr
End Function
The issue with using Redim Preserve to combine arrays is it can be an expensive operation, since you're basically re-creating the array everytime it's called. Since you have 46 arrays you're combining, you may very well be waiting a while.
Instead, you can loop over the arrays to figure out the total number of elements you need, dimension out your master array, then loop over the arrays again to do the actual assignment/merging. Something like this:
' encapsulates code to determine length of an individual array
' note that because arrays can have different LBounds in VBA, we can't simply use
' Ubound to determine array length
Public Function GetArrayLength(anArray As Variant) As Integer
If Not IsArray(anArray) Then
GetArrayLength = -1
Else
GetArrayLength = UBound(anArray) - LBound(anArray) + 1
End If
End Function
Public Function CombineArrays(ParamArray arraysToMerge() As Variant) As Variant
' index for looping over the arraysToMerge array of arrays,
' and then each item in each array
Dim i As Integer, j As Integer
' variable to store where we are in the combined array
Dim combinedArrayIndex As Integer
' variable to hold the number of elements in the final combined array
Dim CombinedArrayLength As Integer
' we don't initialize the array with an array-length until later,
' when we know how long it needs to be.
Dim combinedArray() As Variant
' we have to loop over the arrays twice:
' First, to figure out the total number of elements in the combined array
' second, to actually assign the values
' otherwise, we'd be using Redim Preserve, which can get quite expensive
' because we're creating a new array everytime we use it.
CombinedArrayLength = 0
For i = LBound(arraysToMerge) To UBound(arraysToMerge)
CombinedArrayLength = CombinedArrayLength + GetArrayLength(arraysToMerge(i))
Next i
' now that we know how long the combined array has to be,
' we can properly initialize it.
' you can also use the commented code instead, if you prefer 1-based arrays.
ReDim combinedArray(0 To CombinedArrayLength - 1)
' Redim combinedArray(1 to CombinedArrayLength)
' now that the combinedarray is set up to store all the values in the arrays,
' we can begin actual assignment
combinedArrayIndex = LBound(combinedArray)
For i = LBound(arraysToMerge) To UBound(arraysToMerge)
For j = LBound(arraysToMerge(i)) To UBound(arraysToMerge(i))
combinedArray(combinedArrayIndex) = arraysToMerge(i)(j)
combinedArrayIndex = combinedArrayIndex + 1
Next j
Next i
' assign the function to the master array we've been using
CombineArrays = combinedArray
End Function
To use this function, you'd do something like the following:
Public Sub TestArrayMerge()
Dim myArray1() As Variant
Dim myArray2() As Variant
Dim myArray3() As Variant
Dim myArray4() As Variant
Dim combinedArray As Variant
myArray1 = Array(1, 2, 3, 4)
myArray2 = Array(5, 6, 7)
myArray3 = Array(8, 9)
myArray4 = Array(10, 11, 12, 13, 14)
combinedArray = CombineArrays(myArray1, myArray2, myArray3, myArray4)
If IsArray(combinedArray) Then
Debug.Print Join(combinedArray, ",")
End If
End Sub
Regarding your last bit, that you're using an inner loop to combine the values in your final combined array: Your inner loop doesn't need to start at LBound(myArray). For any value of i, you've already compared it to the elements before it (e.g., when i = 2, it's already been compared to the first element). So you really just need:
For i = LBound(combinedArray) To UBound(combinedArray) - 1
For j = i + 1 To UBound(combinedArray)
' do whatever you need
Next j
Next i
Perhaps this ...
'To determine if a multi-dimension array is allocated (or empty)
'Works for any-dimension arrays, even one-dimension arrays
Public Function isArrayAllocated(ByVal aArray As Variant) As Boolean
On Error Resume Next
isArrayAllocated = IsArray(aArray) And Not IsError(LBound(aArray, 1)) And LBound(aArray, 1) <= UBound(aArray, 1)
Err.Clear: On Error GoTo 0
End Function
'To determine the number of items within any-dimension array
'Returns 0 when array is empty, and -1 if there is an error
Public Function itemsInArray(ByVal aArray As Variant) As Long
Dim item As Variant, UBoundCount As Long
UBoundCount = -1
If IsArray(aArray) Then
UBoundCount = 0
If isArrayAllocated(aArray) Then
For Each item In aArray
UBoundCount = UBoundCount + 1
Next item
End If
End If
itemsInArray = UBoundCount
End Function
'To determine the number of dimensions of an array
'Returns -1 if there is an error
Public Function nbrDimensions(ByVal aArray As Variant) As Long
Dim x As Long, tmpVal As Long
If Not IsArray(aArray) Then
nbrDimensions = -1
Exit Function
End If
On Error GoTo finalDimension
For x = 1 To 65536 'Maximum number of dimensions (size limit) for an array that will work with worksheets under Excel VBA
tmpVal = LBound(aArray, x)
Next x
finalDimension:
nbrDimensions = x - 1
Err.Clear: On Error GoTo 0
End Function
'****************************************************************************************************
' To merge an indefinite number of one-dimension arrays together into a single one-dimension array
' Usage: mergeOneDimArrays(arr1, arr2, arr3, ...)
' Returns an empty array if there is an error
' Option Base 0
'****************************************************************************************************
Public Function mergeOneDimArrays(ParamArray infArrays() As Variant) As Variant
Dim x As Long, y As Long, UBoundCount As Long, newUBoundCount As Long
Dim tmpArr As Variant, allArraysOK As Boolean
UBoundCount = 0
allArraysOK = True
For x = LBound(infArrays) To UBound(infArrays)
If Not IsArray(infArrays(x)) Or Not nbrDimensions(infArrays(x)) = 1 Then
allArraysOK = False
Exit For
End If
UBoundCount = UBoundCount + itemsInArray(infArrays(x))
Next x
If allArraysOK Then
ReDim tmpArr(0 To UBoundCount - 1)
UBoundCount = 0
For x = LBound(infArrays) To UBound(infArrays)
For y = LBound(infArrays(x)) To UBound(infArrays(x))
tmpArr(UBoundCount) = infArrays(x)(y)
UBoundCount = UBoundCount + 1
Next y
Next x
newUBoundCount = itemsInArray(tmpArr)
If newUBoundCount = UBoundCount Then
mergeOneDimArrays = tmpArr
Else
mergeOneDimArrays = Array()
End If
Erase tmpArr
Else
mergeOneDimArrays = Array()
End If
End Function
If you are working with one-dimensional arrays you could use a collection instead. It is much better at handling dynamic sizing.
You can declare a collection and then add each of the elements in the arrays to it. Then you will have one large list with all of the values.
Dim coll As New Collection
coll.Add MyArray(j)
Here is a good to collections introduction:
https://excelmacromastery.com/excel-vba-collections/
I have a set of 7 non-consecutive columns to cycle through and I want to hide all the rows after the end of the longest column (cells that contain no value).
For Each Y In Array(4, 10, 16, 22, 28, 34, 40)
For X = 16 To 65
If wks.Cells(X, Y).Value = "" Then
wks.Cells(X, Y).EntireRow.Hidden = True
Else: wks.Cells(X, Y).EntireRow.Hidden = False
End If
Next X
Next Y
This would cover it except for the fact that the columns are different lengths and by the time the macro is finished, some rows that contain data have been hidden. I know what I have isn't quite correct, I'm just not sure how to tweak it.
Loop the columns and use Find to find the last with a value.
Sub test()
Dim wks As Worksheet
Set wks = ActiveSheet
wks.Rows("16:65").Hidden = False
Dim y
Dim j As Range
Dim currentmax As Long
For Each y In Array(4, 10, 16, 22, 28, 34, 40)
Set j = wks.Range(wks.Cells(16, y), wks.Cells(65, y)).Find("*", wks.Cells(16, y), , , xlByRows, xlPrevious)
If Not j Is Nothing Then
If j.Row > currentmax Then currentmax = j.Row
End If
Next y
If currentmax > 16 Then
wks.Rows(currentmax + 1 & ":65").Hidden = True
End If
End Sub
Sub TestMe()
Dim wks As Worksheet
Set wks = Worksheets(1)
Dim myCol As Variant
Dim myRow As Long
Dim recordRow As Long : recordRow = 65
For Each myCol In Array(4, 10, 16, 22, 28, 34, 40)
For myRow = 16 To 65
If wks.Cells(myRow, myCol).Value = "" Then
If recordRow < myRow Then recordRow = myRow
Exit For
End If
Next myRow
Next myCol
If myRow < 65 Then wks.Rows("65:" & myRow).EntireRow.Hidden = True
End Sub
Introduce a variable recordRow, which keeps the lowest row of the columns;
Once the variable makes the check, the first for loop exits;
At the end you hide the EntireRow, starting from 16 and ending with the recordRow;
If myRow < 16 is needed to make sure that myRow has some values assigned;
I have an integer array of values and want to find a simple way of calculating its cumulative sum (S = Data(1) + Data(2) + ... + Data(x)).
I already created this function:
Function CumulativeSum(Data() As Integer, k As Integer) As Integer
For entry = 1 To k
CumulativeSum = CumulativeSum + Data(entry)
Next entry
End Function
and it's working fine. However, I wonder if there's a better way of doing it (mainly without the use of any extra function and essentially using only excel functions like Application.Sum). I made a small search on the web but didn't find anything on this basis.
I know I'm not asking to correct any code and I'm just asking for an alternative which is not the real purpose of this forum. However, I also suspect that the answer could be simple, so... If anyone care to help me I'll appreciate very, very much! If you find an answer to a similar question, please share the link with me and I'll remove this one.
I'm very sorry for probably my lack of explicitly on my demand: I simply want to find a simple way of calculating the cumulative sum using simple functions on the macro routine itself, WITHOUT using the CumulativeSum function I created or any other function created by the user.
If you want to achieve a cumulative array array like Array(a,a+b,a+b+c) from Array(a,b,c), then this is the function to achieve it, if you want to pass start and end parameters:
Public Sub TestMe()
Dim outputArray As Variant
Dim inputArray As Variant
Dim counter As Long
inputArray = Array(1, 2, 4, 8, 16, 32, 64)
outputArray = generateCumulativeArray(inputArray, 1, 4)
For counter = LBound(outputArray) To UBound(outputArray)
Debug.Print outputArray(counter)
Next counter
outputArray = generateCumulativeArray(inputArray, toValue:=4)
For counter = LBound(outputArray) To UBound(outputArray)
Debug.Print outputArray(counter)
Next counter
End Sub
Public Function generateCumulativeArray(dataInput As Variant, _
Optional fromValue As Long = 0, _
Optional toValue As Long = 0) As Variant
Dim i As Long
Dim dataReturn As Variant
ReDim dataReturn(0)
dataReturn(0) = dataInput(fromValue)
For i = 1 To toValue - fromValue
ReDim Preserve dataReturn(i)
dataReturn(i) = dataReturn(i - 1) + dataInput(fromValue + i)
Next i
generateCumulativeArray = dataReturn
End Function
Concerning just summing an array, this is the way to do it:
You can use the WorksheetFunction. and you can pass the array as an argument. Thus, you get all the functions, e.g. Average, Min, Max etc:
Option Explicit
Public Sub TestMe()
Dim k As Variant
k = Array(2, 10, 200)
Debug.Print WorksheetFunction.Sum(k)
Debug.Print WorksheetFunction.Average(k)
End Sub
If you want the sum from a given start to a given end, the easiest way is probably to make a new array and to sum it completely. In Python this is called slicing, in VBA this could be done a bit manually:
Public Sub TestMe()
Dim varArr As Variant
Dim colSample As New Collection
varArr = Array(1, 2, 4, 8, 16, 32, 64)
colSample.Add (1)
colSample.Add (2)
colSample.Add (4)
colSample.Add (8)
Debug.Print WorksheetFunction.Sum(generateArray(varArr, 2, 4))
Debug.Print WorksheetFunction.Sum(generateArray(colSample, 2, 4))
End Sub
Public Function generateArray(data As Variant, _
fromValue As Long, _
toValue As Long) As Variant
Dim i As Long
Dim dataInternal As Variant
Dim size As Long
size = toValue - fromValue
ReDim dataInternal(size)
For i = LBound(dataInternal) To UBound(dataInternal)
dataInternal(i) = data(i + fromValue)
Next i
generateArray = dataInternal
End Function
The idea is that the generateArray function returns a new array. Thus, its complete sum is what you need. It works also with collections, not only with arrays. Be careful, when using collections, they start with index 1, while arrays (usually) start with 0. If you want to use the same indexing for Arrays and Collections, then change the generateArray function to this one:
Public Function generateArray(data As Variant, _
fromValue As Long, _
toValue As Long) As Variant
Dim i As Long
Dim dataInternal As Variant
Dim size As Long
size = toValue - fromValue
ReDim dataInternal(size)
If IsArray(data) Then
For i = LBound(dataInternal) To UBound(dataInternal)
dataInternal(i) = data(i + fromValue)
Next i
Else
For i = LBound(dataInternal) To UBound(dataInternal)
dataInternal(i) = data(i + fromValue + 1)
Next i
End If
generateArray = dataInternal
End Function
Or write Option Base 1 on top and the array will start from 1 (not advised!).
Try this:
Sub test()
Dim arr As Variant
arr = Array(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
Dim mySum As Long, k As Long
Dim wsf As WorksheetFunction
Set wsf = Application.WorksheetFunction
k = 6
'operative line below
mySum = wsf.Sum(wsf.Index(arr, 1, Evaluate("ROW(1:" & k & ")")))
MsgBox mySum
End Sub
For cumulative sum try the following
Function CumulativeSum(Data() As Integer, k As Integer) As Integer
Dim tempArr
tempArr = Data
ReDim Preserve temp(0 To k - 1)
CumulativeSum = WorksheetFunction.Sum(tempArr)
End Function
EDIT :
Sub Demo()
Dim MyArray
Dim i As Long
MyArray = Array(1, 2, 3, 4, 5, 6, 7, 8, 9)
Debug.Print MyArray(LBound(MyArray))
For i = LBound(MyArray) + 1 To UBound(MyArray)
MyArray(i) = MyArray(i - 1) + MyArray(i)
Debug.Print MyArray(i)
Next i
End Sub
Above code updates array arr from
1, 2, 3, 4, 5, 6, 7, 8, 9
to
1, 3, 6, 10, 15, 21, 28, 36, 45
This function returns an array with the cumulative sum of the original vector.
Function CumuVector(Vec As Variant) As Variant()
Dim element, v() As Variant
Dim i As Integer
lastindexinvec = 0
For Each element In Vec
lastindexinvec = last + 1
Next
ReDim v(lastindexinvec) As Variant
i = 0
For Each element In Vec
If i < last Then
sum = sum + element
v(i) = sum
i = i + 1
End If
Next
CumuVector = v
End Function
I am trying to slice several columns out of my original array "dataset" this does not work and I don't know why, could someone please provide some insight here?
Sub Pooling()
dim dataset()
Dim rows As Long
Dim columns As Long
Dim varTemp()
rows = ShUnicorn.Cells(ShUnicorn.rows.Count, 1).End(xlUp).Row
columns = ShUnicorn.Cells(1, ShUnicorn.columns.Count).End(xlToLeft).Column
dataset = ShUnicorn.Range(ShUnicorn.Cells(1, 1), ShUnicorn.Cells(rows, columns))
varTemp = Application.Index(dataset, 0, Array(5, 6, 11, 12, 17, 18))
For i = 1 To 5
For j = 1 To 5
shSmear.Cells(40 + j, i + 3).Value = varTemp(j, i)
Next j
Next i
End Sub