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 /*          S A S   S A M P L E   L I B R A R Y                 */ 
 /*                                                              */ 
 /*    NAME: pdlgs.sas                                           */ 
 /*   TITLE: Examples for PROC PDLREG: Getting Started           */ 
 /* PRODUCT: ETS                                                 */ 
 /*  SYSTEM: ALL                                                 */ 
 /*    KEYS:                                                     */ 
 /*   PROCS: PDLREG                                              */ 
 /*    DATA:                                                     */ 
 /*                                                              */ 
 /* SUPPORT:                                                     */ 
 /*     REF: SAS/ETS User's GUIDE: PROC PDLREG CHAPTER           */ 
 /*    MISC:                                                     */ 
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 /* Examples from the Getting Started Section of the PDLREG 
    procedure */ 
 
 /* Introductory PDLREG Example */ 
 
data test; 
   xl1 = 0; xl2 = 0; xl3 = 0; 
   do t = -3 to 100; 
      x = ranuni(1234); 
      y = 10 + .25 * xl1 + .5 * xl2 + .25 * xl3 + .1 * rannor(1234); 
      if t > 0 then output; 
      xl3 = xl2; xl2 = xl1; xl1 = x; 
      end; 
run; 
 
proc pdlreg data=test; 
   model y = x( 4, 3 ); 
run;