SAS Date,Time and datetime functions
A Beginners Guide to SAS Date and Time Handling: Abstract: The SAS system provides a plethora of methods to handle date and time values. Correct date computation became a very important subject when the world became aware of the Year 2000 issue. Computer users now realize most applications contain date and time variables. This beginning tutorial describes how the SAS system 1) stores dates, datetimes, and times; 2) reads date/time variables from "Raw Data Files" and from SAS data sets. It covers when and where to use SAS Informats and formats. Next it describes the easy methods to perform date/time arithmetic via date/time SAS functions. The paper shows how SAS date Formats can be used in SAS Procedures such as PRINT, FREQ, and CHART. Finally the tutorial will discuss Year 2000 issues and how SAS software helps you maintain correct date integrity and prevent future Y2k problems in the new millennium. More can be read at: http://www.kellogg.northwestern.edu/researchc...