Average and Countrows formula help

HI Anonymous,

I'd like to suggest you take a look at library to know how these functions works:

AVERAGE:Returns the average (arithmetic mean) of all the numbers in a column.

COUNTROWS:The COUNTROWS function counts the number of rows in the specified table, or in a table defined by an expression.

You can also try to use following measure formula to group records based on category fields and get the average of these row count:

measure =
AVERAGEX (
    SUMMARIZE (
        Table,
        [Group column1],
        [Group column2],
        [Group column2],
        "Row Count", COUNTROWS ( Table )
    ),
    [Row Count]
)

Regards,
Xiaoxin Sheng