TOPN – first N rows from table (DAX – Power Pivot, Power BI)
This is about the TOPN DAX function, enabling us to see first (last) n rows from table (to do this in visualization, use this tutorial).
Let´s start with this table, containing total revenue for items.
To see first three items with highest revenue, the syntax is:
Items with highest revenue = TOPN(3;'Table';'Table'[Total revenue];DESC)
But what if we started with table containing not summarized values, like this?
Then we have to add the summarizing function and get three items from table provided by it: