Forum Discussion
Some help with right filtering needed
You might try the following. I don't know if this is the best solution, but I think this might work.
A little adoptation of Reza Rad's create row number per group.
The first step would be that you follow the instruction on this blog page by Reza Rad:
https://radacad.com/create-row-number-for-each-group-in-power-bi-using-power-query
The only difference that I would suggest is to let the index number start at 0 (although 1 would work as wel).
After performing this step you get something like
Ticket Number Grade Description Index 12345 A Apple 0 54321 A Orange 0 54321 B Banana 1 54321 C Peach 2 54321 C Pear 3 After this you could do a regular group by through the UI. Choose advanced options to include all the columns. Don't perform a sum, but perform a max on the Index column.
Then you get something like this:
Ticket Number Grade Description Index numberofsubtickets 12345 A Apple 0 0 54321 A Orange 0 3 54321 B Banana 1 3 54321 C Peach 2 3 54321 C Pear 3 3 After this step you could add a custom column. If index = 0 and numberofsubtickets > 0 then 0 else if
index > 0 and numberofsubtickets > 0 then 1 else 1
Ticket Number Grade Description Index numberofsubtickets Number 12345 A Apple 0 0 1 54321 A Orange 0 3 0 54321 B Banana 1 3 1 54321 C Peach 2 3 1 54321 C Pear 3 3 1 After this you can perform a group by and sum on the number column and this will give the result your looking for.
Personally I would change the code by Reza Rad to start with 0. I believe it will then look like this:
Table.AddIndexColumn([Count],"Index",0)
After that with step2 you need to again group all rows. You could follow step1 from Reza again. Add All rows and then add a new aggregation: max(Index).