STARTOFYEAR Function
Returns the first date of the year in the current context for the specified column of dates.
Syntax
STARTOFYEAR(<dates>)
Parameters
Term |
Definition |
|---|---|
dates |
A column that contains dates. |
YearEndDate |
(Optional) A year end date value. |
Return Value
A table containing a single column and single row with a date value.
Remarks
Note
To understand more about how context affects the results of formulas, see Context in DAX Formulas.
The dates argument can be any of the following:
A reference to a date/time column.
A table expression that returns a single column of date/time values.
A Boolean expression that defines a single-column table of date/time values.
Note
Constraints on Boolean expressions are described in the topic, CALCULATE Function.
This DAX function is not supported for use in DirectQuery mode. For more information about limitations in DirectQuery models, see https://go.microsoft.com/fwlink/?LinkId=219172.
Example
The following sample formula creates a measure that returns the start of the year, for the current context.
To see how this works, create a PivotTable and add the fields CalendarYear and MonthNumberOfYear to the Row Labels area of the PivotTable. Then add a measure, named StartOfYear, using the formula defined in the code section, to the Values area of the PivotTable.
=STARTOFYEAR(DateTime[DateKey])