USE OF THE “STUDY DAY” VARIABLES
The permissible Study Day variables (–DY, –STDY, and –ENDY) describe the relative day of the observation starting with the reference date as Day 1. They are determined by comparing the date portion of the resp…
USE OF THE “STUDY DAY” VARIABLES
The permissible Study Day variables (–DY, –STDY, and –ENDY) describe the relative day of the observation starting with the reference date as Day 1. They are determined by comparing the date portion of the resp…