Re: [Gretl-users] sorry, learning hansl question

You can do this in two ways. First: smpl 1855 1894 loop i = 1..3 #do stuff smpl +5 +5 endloop Second: string st_yr = "1855 1860 1865 1870" string ed_yr = "1894 1899 1904 1909" string st ed loop i = 1..4 st = strsplit(st_yr,i) ed = strsplit(ed_yr,i) smpl @st @ed #do stuff endloop The second option should only be used if your periods do not change in a regular way as it is slower. Logan > -----Original Message----- > From: gretl-users-bounces(a)lists.wfu.edu [mailto:gr etl-users- > bounces(a)lists.wfu.edu] On Behalf Of Tim Nall > Sent: Friday, May 16, 2014 9:10 PM > To: Gretl list > Subject: [Gretl-users] sorry, learning hansl question > > If you can figure out the iffy psuedo-psuedocode below, I'm trying to run 1 ols > regression over 4 different date ranges (so total 4 > regressions) with 1 dependnet variable and 1 independant variable.. > but I want to run a kpss test on both the depvar and indvar before doing the > regression for each date range, then utilize either the variable or its fiorst- > differenced version depending on the results of the kpss (at 5%, hopefully). > > Can this be done in hansl? > > > start_yr = 1855 1860 1865 1870 > end_yr = 1894 1899 1904 1909 > > ## get MyDepVar and myIndVar from file, then > > for i in start_yr, end_yr > > smpl start_yr end_yr > > kpss 3 myDepVar ## and capture results > if stationary = True: > tempDepVar = MyDepVar > else: > tempDepVar = d_MyDepvar > > kpss 3 myIndVar ## and capture results > > if stationary = True: > tempIndVar = myIndVar > else: > tempIndVar = d_myIndVar > > ols tempDepVar tempIndVar > > > > > -- > Best regards, > Timothy M. Nall > Assistant Professor > National Quemoy University > Kinmen, Taiwan > _______________________________________________ > Gretl-users mailing list > Gretl-users(a)lists.wfu.edu > http://lists.wfu.edu/mailman/listinfo/gretl-users _______________________________________________ Gretl-users mailing list Gretl-users(a)lists.wfu.edu http://lists.wfu.edu/mailman/listinfo/gretl-users