check to see if cell contains #na - vba

Im trying to use the below to see if a cell contains #na then clear the contents. But keep getting an error
For k = 17 To i
If WorksheetFunction.IsNA.sh.Range("G" & k) Then
sh.Range("D:" & k).Clear
End If
Next k

You can also do that faster without a loop:
sh.range("G17:G" & i).SpecialCells(xlCellTypeConstants, xlerrors).Clear
If the range contains formulas rather than constants, just replace
xlCellTypeConstants by xlCellTypeFormulas
However you won't be able to target specific errors.

Try this code:
For k = 17 To i
If WorksheetFunction.IsNA(sh.Range("G" & k).Value) Then
sh.Range("D" & k).Clear
End If
Next k

Related

Introduce variables in recorded VBA macro

I recorded part of this macro in Excel:
Cells(x, i).Select
Selection.FormulaArray = _
"=SQRT((MMULT(MMULT(TRANSPOSE(R2C14:R9C14),'Monthly Covariance y1'!R[12]C[0]:R[19]C[7]),'Portfolio Vola per Month'!R2C14:R9C14)))"
In the middle term " 'Monthly Covariance y1'!R[12]C[0]:R[19]C[7])" I want to express the bold numbers as variables. 0 should be j and 7 should be j+7.
When I try to replace the hard numbers by variables, Excel returns "Unable to set FormulaArray property of the Range class".
Any idea on how I can work around this problem?
Many thanks.
Just close the formula, add variables, and open again:
"=SQRT((MMULT(MMULT(TRANSPOSE(R2C14:R9C14),'Monthly Covariance y1'!R[12]C["& j & "]:R[19]C["& j + 7 & "]),'Portfolio Vola per Month'!R2C14:R9C14)))"
By "close the formula", I mean close with a ", then use & to connect the variables, then "reopen" with ". Simple example, with j being a row number, say 5:
myRange.FormulaR1C1 = "=Sum(A" & j & ":A" & j & ")"
is equivalent to
myRange.FormulaR1C1 = "=Sum(A5:A5)"
Also, this is another issue altogether, but try to avoid using .Select

excel VBA : how to skip blank cells between 2 cells that contain values?

I am working out a button that can auto sum value at column C that column A = column B
like the picture :
PIC:
I can only copy the value in column C (that the word in column A = column B) to column E so far.
the code
Private Sub CommandButton2_Click()
Dim i As Integer, q As Integer
q = 2
For i = 3 To 100
Range("E" & q).Value = Range("b" & 3).Value
If Range("B" & i).Value = "A-RDL1" And Range("c" & i).Value = "OPEN" Then
Range("E" & i).Value = Range("d" & i).Value
End If
Next i
End Sub
the question 1) is how can I skip the blanks E9 to E17, so the numbers can be continuous? (AFTER CLICK THE BOTTON)
question 2) is it possible to auto sum the Numbers in column E instead of show each?
Thanks a lot and sorry for my poor English...
1) Yes, you can skip those, just carry out a check in the cell value and compare to empty string: Range("").Value2 = "". I personally prefer to do it like this though, to avoid false positives: Len(Trim(Range("").Value2)) = 0.
2) Yes, you can do that. just declare an Integer variable or two and use that to carry out a running count of your values.

Looping a Cell Reference in a match function

I'm pretty new to VBA and was wondering why my formula doesnt work?
I'm trying to loop the cells Sheets("Summary").Cells(11 + X, 13) in my match function but it doesn't seem to work. Am I doing something wrong?
Sub Reset()
Dim X As Integer
For X = 0 To 19
Sheets("Summary").Cells(11 + X, 13).Select
Selection.Formula = "=INDEX(YMAX!$A:$W,MATCH(Summary!$J$4&"" ""&Summary!$J$5&"" ""&11,YMAX!$B:$B,0),MATCH(sheets("Summary").cells(11 + x,9),YMAX!$1:$1,0))"
Next X
End Sub
It looks like you have the following errors
&'s are in the wrong places (should be outside of the quotes when concatenating text, inside the quotes when concatenating cell references)
Variables (i.e. your reference to a cell on the "Summary" sheet) do
not need to be in quotes when building a string in VBA
(not an error, per say) You don't need to do .Select as you can
set the formula of the cell directly.
Update your code with the following
Sub Reset()
Dim X As Integer
For X = 0 To 19
' Broken up on several lines for clarity
Sheets("Summary").Cells(11 + X, 13).Formula =
"=INDEX(YMAX!$A:$W,MATCH(Summary!$J$4" & " " & _
"Summary!$J$5" & " " & _
"11,YMAX!$B:$B,0),MATCH(" & _
Sheets("Summary").Cells(11 + X,9).Address & _
",YMAX!$1:$1,0))"
Next X
End Sub
I'm not sure if that's the formula you want exactly, but it's what i interpreted given your current code. Let me know if that works for you.

Excel VBA: Using a variable when defining a list as a String

Pretty new to VBA but I'm learning quickly.
I'm finally getting used to using loops to perform repetitive tasks, and in this case, I want each pass through the loop to define a different variable. I'd be defining a list as a string and pushing a value to each part of the list for each loop.
Obviously, the number of loops is variable, so I need the end point of the defined list to be a variable. From what I've searched, that's not possible? I'm getting a "constant expression required" error.
Here is the code (lastRow is already defined):
NextAverage = 0
section = 1
Dim AverageSection(1 To section) As String
For section = 1 To PhraseSections
ActiveCell.Formula = "=MATCH(""average"",A" & NextAverage + 1 & ":A" & lastRow & ",0)"
Selection.Offset(1, 0).Select
ActiveCell.Formula = "=SUM(G1:G" & section & ")"
NextAverage = ActiveCell.Value
AverageSection(section) = ActiveCell.Value
Next section
Any help would be greatly appreciated!
Try using Redim Preserve:
Dim AverageSection() As String
For section = 1 To PhraseSections
Redim Preserve AverageSection(section)
...
Next section
Does this help?

Am I using the isnumeric function correctly?

This program is to convert a column of data from cumulative to non-cumulative. On my sheet I have A1, B1, and C1 with the text Non-Cumulative, Cumulative, and Converted, respectively. I have numbers 1 to 10 beneath A1, then them summed cumulatively beneath B1. C1 is where I want to convert column B back to non-cumulative.
The IsNumeric is used to make the first row of data in C equal to the first row of data in B. It should detect that the title is above the number it is evaluating, thus knowing that no calculations have to be performed. For the rest of them, it'll see that the number above the one it is evaluating is a number, and thus the calculation has to be done.
My problem is that it isn't working. I think the reason is because IsNumeric() keeps coming back as false. Is there a different function I should be using? Do cell references not work in IsNumeric?
Here's the program!
Option Explicit
Dim i As Variant
Sub Conversion()
Sheets("Test Sheet").Select
For i = 1 To 10
If IsNumeric("B" & i) = False Then
Range("C" & i + 1) = Range("B" & i + 1)
Else: Range("C" & i + 1) = Range("B" & i + 1) - Range("B" & i - 1)
End If
Next
End Sub
The way you wrote your code is logical, just a minor syntax changes you need initially. However,
It's also best to check if the range is empty first...
Then check on if the value is numeric.
Better even, if you set the Range into a Range object and use offset
Code:
Option Explicit '-- great that you use explicit declaration :)
Sub Conversion()
Dim i As Integer '-- integer is good enough
Dim rngRange as Range
'-- try not to select anything. And for a cleaner code
Set rngRange = Sheets("Test Sheet").Range("B1")
For i = 1 To 10
If (rangeRange.Offset(i,0).value) <> "" then '-- check for non-empty
If IsNumeric(rangeRange.Offset(i,0).value) = False Then
rangeRange.Offset(i+1,1) = rangeRange.Offset(i+1,0)
Else
rangeRange.Offset(i+1,1) = rangeRange.Offset(i+1,0) - rangeRange.Offset(i-1,0)
End If
End if
Next i '-- loop
End Sub
To make your code more dynamic:
Another suggestion, you may simply Application.WorkSheetFunction.Transpose() the entire B column range that you need to validate into a variant array
Process the array and Transpose back to the Range with column B and C.
By doing so, you may omit setting for loop size manually but setting it using Lower and Upper bound of the array ;)
You need to check if the range of B i is numeric, not the string "B" & i
and rather than selecting the sheet, simply using a parent identifier like:
sheets("sheet1").range("B" & i)
This will help you avoid errors in your code
For i = 1 To 10
If IsNumeric(sheets("test sheet").range("B" & i).value) = False Then
Range("C" & i + 1) = Range("B" & i + 1)
Else: Range("C" & i + 1) = Range("B" & i + 1) - Range("B" & i - 1)
End If
Next