Power BI: Average Distinct Only

Power BI is a powerful data visualization tool that allows programmers and data analysts to analyze and display data in a meaningful way. One of the most commonly used functions in Power BI is the AVERAGE function. However, sometimes we want to calculate the average of unique values, without including duplicates.

To accomplish this in Power BI, we can use the AVERAGEX function along with the DISTINCT function. The AVERAGEX function allows us to iterate over a table and return the average of a calculation for each row, while the DISTINCT function returns only unique values from a column.

Here is an example of how to use these functions together to calculate the average of distinct values:

Average Distinct Only = 
AVERAGEX(
    DISTINCT('Table'[Column]), 
    'Table'[Column]
)

In this example, replace 'Table' with the name of your table and 'Column' with the name of the column you want to calculate the average for. The AVERAGEX function iterates over the distinct values of the column and calculates the average.

Remember to always use the correct syntax for Power BI DAX functions, and to test your code thoroughly to ensure it is working as expected. The AVERAGEX function is a useful tool in Power BI, especially when combined with other functions, to help us gain deeper insights into our data.