[Solved] SAS Get rid of “duplicate” variables
You can use the UPDATE statement to collapse multiple records to have the latest non-missing value. data have ; input id (course1-course3) ($) ; cards; 1 B . . 1 . A . 1 . . A 2 C . . 2 . C . 2 . . D ; data want ; update have(obs=0) … Read more