program def moreobs *! 1.0.1 NJC 9 August 1999 * 1.0.0 NJC 22 January 1998 version 5.0 if "`2'" != "" { di in r "invalid syntax" exit 198 } if "`1'" == "" { local newN = _N + 1 } else { confirm integer number `1' local newN = _N + `1' } set obs `newN' end