Customizing the reference date
The global parameter _as_of_date is used for relative date analysis. The parameter allows you to change the date that your relative date periods are based on.
By default, the relative date periods are based on the current date. For example, when the current date is July 15, 2018, the YTD (year-to-date) filter includes data from January 1 to July 15, 2018, and the prior month filter includes data from June 1 to June 30, 2018. When you set a specific date as a value for the _as_of_date parameter, your analysis is done as of that date.
Before you begin
After the _as_of_date parameter is set up by the administrator, log out, and log back in to Cognos® Analytics for this parameter to be displayed for you.
If this parameter is not set up, see Setting the _as_of_date global parameter for more information.