Documents Learning to love the SAS LAG function Phuse 9-12 October 2011 Herman Ament, MSD, Oss NL Phuse 9-12.....

Learning to love the SAS LAG function Phuse 9-12 October 2011 Herman Ament, MSD, Oss NL Phuse 9-12 October 2011 * Contents Introduction Definition of LAG and DIF function…