如题,求An Array of Challenges--Test Your SAS Skills与Debugging SAS Programs-A Handbook与
Combining and Modifying SAS Data Sets: Examples, Second Edition
三本教程,希望各位共享一下,
它的代码在
http://ftp.sas.com/samples/A57743与
http://support.sas.com/publishing/bbu/zip/60561.zip