Returns a set of sibling members from the same level as a given member, starting with the first sibling and ending with the given member, as constrained by the Week level in the Time dimension.
The Wtd function is a shortcut function to the PeriodsToDate function that defines that function's «Level» argument to be Week. If no member is specified, then the default is Time.CurrentMember.
Wtd(«Member») is equivalent to PeriodsToDate(Week, «Member»).
The following example returns the days from the beginning of the week to the current day: