## How does the RANKX function (DAX) work?

The RANKX function (DAX) returns the ranking of a number in a list of numbers for each row in the table argument.

## RANKX Formula Syntax

RANKX(
<table>, <expression>, <value>, <order>, <ties>
)

## How do you use the RANKX function?

The RANKX function can be used in calculations for calculated columns as well as calculated measures. The RANKX function will still do what it is asked.

## Related Support Forum Posts

SWITCH & Ranking is just amazing!
Problem with Ranking (RankX), Showing all Customers
RANKX not working as expected

## Considerations when using the RANKX function

• If expression or value evaluates to BLANK it is treated as a 0 (zero) for all expressions that result in a number, or as an empty text for all text expressions.
• If value is not among all possible values of expression then RANKX temporarily adds value to the values from expression and re-evaluates RANKX to determine the proper rank of value.
• Optional arguments might be skipped by placing an empty comma (,) in the argument list, i.e. RANKX(Inventory, [InventoryCost],,,”Dense”)

## Formula examples using the RANKX function

=RANKX(ALL(Products), SUMX(RELATEDTABLE(InternetSales), [SalesAmount]))

= IF ( HASONEVALUE ( Test[Name] ), RANKX ( ALL ( Test[Name] ), [Sum Value] ) )

= RANKX( ‘Table’, ‘Table'[My Value] + (INT(‘Table'[Date]) / 100000) )

## DOWNLOAD

Download our comprehensive DAX Formula Reference Guide as perfect companion as you learn how to use DAX formulas within Power BI.