The ID statement tells SAS to compare rows (observations) in the information set via the determining variable, which Here's named SUBJCTID. This variable have to have a novel worth for every scenario. To accomplish this you will need to have some prevalent variable in Just about every dataset that uniquely http://statisticsassignmenthelp12233.dsiblogger.com/26533683/the-smart-trick-of-stats-project-help-that-nobody-is-discussing