MDX equivalent Query for the below DAX CALCULATE query

Question

I am trying to build a Measure using MDX that is equivalent to the following Power BI DAX calculation:

CALCULATE(
  [Total Orders],
  'Calendar Dimension'[LAST_WEEK_FLAG]=“1"
)

Answer 1

In MDX it would likely be a new measure, that is a tuple of the specified measure and member - so something like the following. The braces are the MDX syntax for a tuple:

(
  [Measures].[Total Orders],
  [Calendar Dimension].[LAST_WEEK_FLAG].[1]
)