How to increment based on empty rows

[#1]

Hi,

I'd like to create a new column formula that increments (1, 2, 3....) only when empty rows are found (e.g. column 7 below). 

Would you have a solution?

Thank you

[#2]

Using formula with Lag() is most likely easiest option. Could you provide example with the result you want to have?

[#3 · Accepted solution]

Here is one way to handle your issue.  Assuming that all of your columns are numeric, this will work

As Constant(
	count = 1;
	lagFlag = 0;
	dt = Current Data Table();
);
If( Is Missing( Sum( dt[Row(), 0] ) ) == 0,
	If( lagFlag == 1,
		count++;
		lagFlag = 0;
	)
,
	lagFlag = 1
);

If( lagFlag == 0, count );

[#4]

Thank you very much Jim! I took me quite some time to go through each block to understand the logic but I finally got it