Selecting a range if column and rows are variables - excel

Question

This was my previous post Insert COUNTIF formula when you have variable holding the value.
Below was the Solution.
Range("Q" & minRow + 1).Formula = "=COUNTIF(P$" & minRow & ":P" & minRow & ",P" & minRow + 1 & ")=0"
I have a new Question. What if the column is a variable?
What is the syntax if both are Variables (column and row are unknown and their values stored in a variable) and what is the syntax if column is variable and row is a number?
I have tried these ways
"=COUNTIF( & Columnz $1: & Columnz &2 ,& Columnz &2000)=0"
and these way
"=COUNTIF( "& Columnz" $1: " & Columnz"2,& Columnz &2000)=0"

Answer 1

To define a range, you can also use Cells, for instance:
ActiveSheet.Cells(1,1) '=Range ("A1")
ActiveSheet.Cells(1,"A") '=Range ("A1")
If you want to define a range, you can do:
Range(Cells(1,1), Cells(10,5)) '=Range("A1:E10")
Thus, you can do:
'where Columnz is a Long or an Integer
"=COUNTIF(" & Range(Cells(1, Columnz), Cells(2, Columnz)).Address & "," & Cells(2000,Columnz).Address & ")=0"

Answer 2

I'd like to add to the nice above responses, that OFFSET is very usefull, specially while looping.
e.g.:
With Range("B3")
For i = 1 to 10
.offset(0, i) = "something"
Next i
End With
You can also make your VBA much more readable, and eliminate the need for "variable formulae" by using the native Excel (R1C1) syntax. Like
myRange.offset(0,i).FormulaR1C1 = "=SUM(R1C[-1]:RC[-1])"
which means sum from row 1 of previous column till same row of previous column.
Finally, you can use the "dual arguments" version of RANGE(cell1, cell2):
With Range("B3")
For i = 1 to 10
.offset(0, i).formula = "=SUM(" & Range(cells(10, 1),cells(10, i)).address & ")"
Next i
End With

Answer 3

The row number is already a variable in your example: minRow. String concatenation is done with an ampersand (&) in VB/A. You are halfway right but missing the second ampersand. You can think about it like this:
"first string" & variable1
This is a concat between 2 strings, if you want to add a third string, you have to use another ampersand:
"first string " & variable1 & "second string"
Your code:
"=COUNTIF(" & columnz & "$" & minRow & ":" & columnz & minRow & ",P" & (minRow + 1) & ")=0"
In response to your comments:
"=COUNTIF(" & columnz & "$1" & ":" & columnz & "1,P2)=0"
Just remove the variable from the string and include the row in the other string literals.

Answer 4

it can be somthing like that:
startRow = 3
endRow = 17
myRange=("B" & StartRow & ":" & "B" & EndRow)
then your range = ("B3":"B17")