Duplicates : counting them, not removing them?
Whats the best way to count duplicates in a table using ETL and or Beast mode on a card? Lets say I have a table of data that shows me how many times each class uses a specific tool so I end up with a table with a list of classes who have used the tool. And, each class can have multiple entries showing each time they included that tool.
I want to add a column to the table that counts how many times each unique class uses the tool so in the card to visually show the data, I want to show a list of unique classes that used the tool and then the extra column showing the number count of how many times that class used the tool.