.VariableIf

     This command informs dbReport that conditions on which to
     calculated various variables follows.  A variable may have a number
     conditions associated with it, however, the use of brackets is not
     supported

     Example
       .Fields
       Married
       *
       .Variables
       TotalMarried  TALLY
       TotalSingle   TALLY
       *
       .VariableIf
       TotalMarried IF Married == .t.
       TotalSingle  IF Married == .f.