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From |
Abhimanyu Arora <abhimanyu.arora1987@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: AW: sort, xtlogit |

Date |
Thu, 22 Jul 2010 22:42:07 +0200 |

Sorry, I mean bys x:gen=....(where x=actual_panel_variable,panel_variable_id) in my previous mail. On Thu, Jul 22, 2010 at 10:39 PM, Abhimanyu Arora <abhimanyu.arora1987@gmail.com> wrote: > I see. Now I get it, in my actual file, I had generated new variables > using -bys actual_panel_variable=....- (actual panel variable is > string), The panel variable for xtset has to be numeric, so if > equivalently I use -bys panel_variable_id=...- , no error is reported. > > Thanks very much indeed, Martin for helping me learn by -do-ing! > > > On Thu, Jul 22, 2010 at 9:51 PM, Martin Weiss <martin.weiss1@gmx.de> wrote: >> >> <> >> >> I do not quite see your point. In your amendment of the code, you change the >> "time" and "id" variables which you previously used to -xtset-. How can >> Stata be sure that you did not change its -sort- order? Of course, it needs >> to check by re-sort-ing... Comment out the lines re "time" and "id", and the >> error no longer happens... >> >> >> >> HTH >> Martin >> >> >> -----Ursprüngliche Nachricht----- >> Von: owner-statalist@hsphsun2.harvard.edu >> [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Abhimanyu Arora >> Gesendet: Donnerstag, 22. Juli 2010 18:00 >> An: statalist@hsphsun2.harvard.edu >> Betreff: Re: st: AW: sort, xtlogit >> >> Hi Martin >> After you run the above do file, please -do- the following. Could it >> have to do with unbalanced panel/missing data? >> >> >> >> ******************************* >> set obs 10003 >> replace id=1001 in 10001 >> replace id=1001 in 10002 >> replace id=1001 in 10003 >> replace time=2 in 10001 >> replace y=.6 in 10001 >> replace x=.3 in 10002 >> replace y=.3 in 10002 >> replace x=.4 in 10003 >> >> gen temp=x[_n]-x[_n-1] >> >> capture noisily xtreg y x L.x temp >> >> xtset id time >> >> xtreg y x L.x temp >> ********************************************** >> >> >> >> >> >> >> On Thu, Jul 22, 2010 at 5:11 PM, Martin Weiss <martin.weiss1@gmx.de> wrote: >>> >>> <> >>> >>> " Even if the dataset is -xtset panelvar timevar- (whether saved or >>> not), and one generates new variables by panel, say by the difference >>> operator, the dataset has to be -xtset- again (unchanged panelvar >>> timevar)" >>> >>> >>> Can you explain what you mean using my example code? I cannot see why one >>> would have to -xtset- anew... >>> >>> ************* >>> /* >>> panel with 10 time >>> periods for 1000 observations >>> each >>> */ >>> >>> clear* >>> set obs 1000 >>> >>> //id >>> gen id=_n >>> lab var id "Person ID" >>> >>> //individual effect >>> gen alpha=rnormal() >>> label var alpha "Individual Effect" >>> >>> //expand to # of time periods >>> expand 10 >>> >>> //get time period (after expansion!) >>> bys id: gen time=_n >>> lab var time "Time Period" >>> //residual per time period >>> gen eps=rnormal() >>> lab var eps "Idiosyncratic Shock" >>> >>> gen x=rnormal() >>> gen y=1+2*x+alpha+eps >>> >>> compress >>> >>> //xtset the thing >>> xtset id time >>> >>> xtreg y x >>> >>> >>> gen difftime=D.time >>> gen lagtime=L.time >>> >>> >>> xtreg y x difftime lagtime >>> ************* >>> >>> >>> >>> HTH >>> Martin >>> >>> >>> -----Ursprüngliche Nachricht----- >>> Von: owner-statalist@hsphsun2.harvard.edu >>> [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Abhimanyu >> Arora >>> Gesendet: Donnerstag, 22. Juli 2010 16:45 >>> An: statalist@hsphsun2.harvard.edu >>> Betreff: Re: st: AW: sort, xtlogit >>> >>> Thanks for the hint Martin, I gave some more thought and played around >>> with it and learnt a thing which could be useful to some statalisters. >>> Even if the dataset is -xtset panelvar timevar- (whether saved or >>> not), and one generates new variables by panel, say by the difference >>> operator, the dataset has to be -xtset- again (unchanged panelvar >>> timevar) >>> In my case, -xtlogit- worked, eventually. >>> Best regards >>> Abhimanyu >>> >>> >>> On Thu, Jul 22, 2010 at 4:16 PM, Martin Weiss <martin.weiss1@gmx.de> >> wrote: >>>> >>>> <> >>>> >>>> Could have something to do with the lags in the independent vars >>>> <http://www.stata.com/statalist/archive/2006-08/msg00613.html>, even >>> though >>>> -help xtlogit- clearly does allow -tsvarlist-s. >>>> >>>> I would say you >>>> >>>> ************* >>>> set tr on >>>> ************* >>>> >>>> and report the area around the error. >>>> >>>> HTH >>>> Martin >>>> >>>> -----Ursprüngliche Nachricht----- >>>> Von: owner-statalist@hsphsun2.harvard.edu >>>> [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Abhimanyu >>> Arora >>>> Gesendet: Donnerstag, 22. Juli 2010 16:03 >>>> An: statalist@hsphsun2.harvard.edu >>>> Betreff: st: sort, xtlogit >>>> >>>> Dear statalist >>>> >>>> I am trying to use the command -xtlogit- and I get a puzzling error >>>> (pls click on the link below). As you would see, I have sorted my data >>>> but upon running -xtlogit- I get error r(5) not sorted. What can I be >>>> missing? >>>> >>>> http://screencast.com/t/MDlkZjk4ZjUt >>>> >>>> Best regards >>>> Abhimanyu >>>> * >>>> * For searches and help try: >>>> * http://www.stata.com/help.cgi?search >>>> * http://www.stata.com/support/statalist/faq >>>> * http://www.ats.ucla.edu/stat/stata/ >>>> >>>> >>>> * >>>> * For searches and help try: >>>> * http://www.stata.com/help.cgi?search >>>> * http://www.stata.com/support/statalist/faq >>>> * http://www.ats.ucla.edu/stat/stata/ >>>> >>> >>> * >>> * For searches and help try: >>> * http://www.stata.com/help.cgi?search >>> * http://www.stata.com/support/statalist/faq >>> * http://www.ats.ucla.edu/stat/stata/ >>> >>> >>> * >>> * For searches and help try: >>> * http://www.stata.com/help.cgi?search >>> * http://www.stata.com/support/statalist/faq >>> * http://www.ats.ucla.edu/stat/stata/ >>> >> >> * >> * For searches and help try: >> * http://www.stata.com/help.cgi?search >> * http://www.stata.com/support/statalist/faq >> * http://www.ats.ucla.edu/stat/stata/ >> >> >> * >> * For searches and help try: >> * http://www.stata.com/help.cgi?search >> * http://www.stata.com/support/statalist/faq >> * http://www.ats.ucla.edu/stat/stata/ >> > * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**References**:**st: sort, xtlogit***From:*Abhimanyu Arora <abhimanyu.arora1987@gmail.com>

**Re: st: AW: sort, xtlogit***From:*Abhimanyu Arora <abhimanyu.arora1987@gmail.com>

**Re: st: AW: sort, xtlogit***From:*Abhimanyu Arora <abhimanyu.arora1987@gmail.com>

**Re: st: AW: sort, xtlogit***From:*Abhimanyu Arora <abhimanyu.arora1987@gmail.com>

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