Tag Archives: TOPN

Top products within each category in DAX

Posted on by • Posted in Advanced • Tagged , , , , • Leave a comment

If you want to have top products within each category you can solve this using a quite simple query.

Below is a query that lists each model. And for each model the top 2 products (if there are 2 or more products in that model).

DEFINE
MEASURE 'Product'[Sales] =
SUM ( 'Internet Sales'[Sales Amount] )
MEASURE 'Product'[Ranks] =
RANKX (
ALL ( 'Product'[Product Name] ),
SUMX ( RELATEDTABLE ( 'Internet Sales' ), [Sales Amount] )
)
EVALUATE
FILTER (
ADDCOLUMNS (
GENERATE (
VALUES ( 'Product'[Model Name] ),
TOPN (
2,
VALUES ( 'Product'[Product Name] ),
'Product'[Sales],
0
)
),
"Ranks", 'Product'[Ranks],
"SalesAmount", 'Product'[Sales]
),
[SalesAmount] <> 0
)
ORDER BY 'Product'[Model Name] ASC, 'Product'[Sales] DESC

Please note the filter that removes empty rows. If you remove the filter the query will return weird results.

Here is what the result will look like

Rank advanced

Get Top N results in DAX

Posted on by • Posted in Basic script • Tagged , , , • Leave a comment

To get Top N results in DAX we can use the TOPN function.

EVALUATE
TOPN (
    10,
    SUMMARIZE (
        'Internet Sales',
        'Product'[Product Name],
        "Sales Amount", 'Internet Sales'[Internet Total Sales]
    ),
    'Internet Sales'[Internet Total Sales]
)
ORDER BY 'Internet Sales'[Internet Total Sales] DESC

A similar MDX query might look like this

SELECT TOPCOUNT(
	[Product].[Product Name].[Product Name],
	10, 
	[Measures].[Internet Total Sales]) 
ON 1,
[Measures].[Internet Total Sales] ON 0
FROM [Internet Sales]

If you want the bottom N results you can write a DAX like this

EVALUATE
TOPN (
    10,
    SUMMARIZE (
        'Internet Sales',
        'Product'[Product Name],
        "Sales Amount", 'Internet Sales'[Internet Total Sales]
    ),
    'Internet Sales'[Internet Total Sales],
    1
)
ORDER BY 'Internet Sales'[Internet Total Sales] ASC

In MDX we replace the TOPCOUNT with the BOTTOMCOUNT. And then we add a filter to avoid empty rows

SELECT BOTTOMCOUNT(
	FILTER(
		[Product].[Product Name].[Product Name], 
		NOT ISEMPTY([Measures].[Internet Total Sales])
		),
	10, 
	[Measures].[Internet Total Sales])
ON 1,
[Measures].[Internet Total Sales] ON 0
FROM [Internet Sales]