TIME, and LTIME. In addition, in defining the RPN expression, the COMPUTE
data source may only refer to the names of data source listed previously
in the create command. This is similar to the restriction that B<CDEF>s must
refer only to B<DEF>s and B<CDEF>s previously defined in the same graph command.
=item B<RRA:>I<CF>B<:>I<cf arguments>
TIME, and LTIME. In addition, in defining the RPN expression, the COMPUTE
data source may only refer to the names of data source listed previously
in the create command. This is similar to the restriction that B<CDEF>s must
refer only to B<DEF>s and B<CDEF>s previously defined in the same graph command.
=item B<RRA:>I<CF>B<:>I<cf arguments>