Proc import 
  datafile = "C:\Documents and Settings\jlee\My Documents\EC413-1\Basics.xls" 
  out = basics replace;  
 run;

/*Proc print;
   var date rate;
  run;
*/

Proc Arima data = basics;
  identify var = RATE;
  title 'identify with Original Series';
 Run;

 identify var = RATE(1);
  title 'identify with difference 1';
 run;

  estimate p = 1 q = 1 method = ml plot;
  title 'ARIMA(1,1,1)';
 Run;

   estimate p = 2 q = 3 method = ml plot;
  title 'ARIMA(2,1,3)';
 Run;

  forecast id = date interval = month lead = 24 out = myout;
  title 'ARIMA(2,1,3) & Forecasting';
Run;