unit.def

W X Y Z

  Obs: 199  

	W : AR process

        X : AR process with trend
	
	Y : Random walk

	Z : Random walk with drift

Data Source:  generated series 


    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
           W |       199    8.131558    2.601894   1.301199   14.48945
           X |       199    17.27226    6.647608   1.357299   28.48739
           Y |       199    .7488905    3.401586  -7.431993   8.252406
           Z |       199    18.55878    9.265142   .9120676   37.53984