Adds or subtracts (up or down) a single unit of time on the given date field without changing larger fields.

For example, @CalcMgrRollDate(19960131,"month",@_true) results in the date of 19960229. @CalcMgrRollDate(19960131,"day",@_true) results in the date of 19960101.

Possible values of date_part are: day, month, week and year.


Java Class: com.hyperion.calcmgr.common.cdf.CalendarFunctions.rollDate(int,String,boolean)

CDF Spec: @CalcMgrRollDate(date,date_part,up)