.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.
 .
 !short: .VariableClear
  .VariableClear

    This command informs dbReport that the following variables are to be
    clears when there is a change in a specific group.

  Example
    .Variables
    SubTotal := SUM Cost
    Total    := SUM Cost
    *
    .VariableClear
    SubTotal 01
    *
    .Group 01
    CustomerNum
.