Hi All, I have a data set containing : pclass: A factor giving the class of the passenger: one of 1st, 2nd, 3rd. age The age of the passenger in years. sex Passenger's gender: female or male age.group Passengers age group, one of 0‐9 , 10‐19, 20‐29, 30‐39, 40‐49, 50‐59, 60‐69, 70‐79 survived Passenger's survival (1=survived, 0=did not survive)