DAX’s EARLIER And EARLIEST Functions

Matt Allington contrasts the EARLIER function with the EARLIEST function in DAX:

The EARLIER function by default refers to the row context that immediately preceded the current row context being considered.  In the examples used here there have only been 2 row contexts, the outer and the inner.  Given there are only 2, when using EARLIER within the inner row context it is always referring to the outer row context.  In this case, EARLIER and EARLIEST refer to the same outer row context.  If there are more than 2 row contexts, the EARLIER function accesses the previous row context by default (starting from the inner and moving out) and the EARLIEST function refers to the outermost row context. But did you know that EARLIER has a second optional parameter?

Read the whole thing.

Related Posts

Bubbling Up HTTP Status Errors In Power Query

Tony McGovern takes us through a method involving Power Query + M of giving end users useful information when a web request fails: So how does this relate to error tables? Like most well-documented APIs, the U.S. Census Bureau API has a page devoted to listing and describing all the possible response codes that can be […]

Read More

Power BI Embedding Techniques

Marc Lelijveld takes us through the different ways we can embed Power BI dashboards: In the end of 2018 Microsoft announced a great new feature which allows you to secure embed Power BI content to client applications or sites and keep security still in place. Actually, it almost works the same as the publish to […]

Read More

Categories

January 2018
MTWTFSS
« Dec Feb »
1234567
891011121314
15161718192021
22232425262728
293031