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Hello, R for Dummies. How can I exclude the first 1000 values of a vector (length 12000)? More generally all the values up to the ith? Thanks for your help, Dr Olivier Charansonney Cardiologue Centre Hospitalier Sud-Francilien, Corbeil-Essonnes, France [[alternative HTML version deleted]]

...- adjust the 97 current departments to correspond to the 86 in 1830 - delete those not part of France then ; data gfrtemp; set maps.france; /* Corse was one dept - merge these to one area, new ID */ if id in (201, 202) then dept=200; /* Seine et Oise (78) was cut into Essonne (91), Val d'Oise (95) and Yvelines (78) */ else if id in (91, 95) then dept=78; /* Seine (75) now split into Hauts-de-Seine (92), Seine-Saint-Denis (93) et Val-de-Marne (94)*/ else if id in (92, 93, 94) then dept=75; /* departments not part of France in 1830 */...