問題文
An analyst wants a scatterplot where each point represents a customer, plotting SUM(Sales) against SUM(Profit). What must be on the Detail (or level of detail) so that one mark appears per customer?
選択肢
- Sales on Color and Profit on Size.
- A Top N filter on Customer.
- The Customer dimension, placed on Detail, which sets the mark granularity to one per customer.
- Nothing; scatterplots always show one mark per row automatically, so the customer grain is inferred from the data source.