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From |
joachim jarreau <joachim.jarreau@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: AW: clogit, "initial values not feasible" error |

Date |
Thu, 17 Dec 2009 15:49:55 +0100 |

Yes, sorry this error simply came from a syntax problem. Indeed, the from() option works with clogit; but it does not seem to help for my problem: i get the same message, "initial values not feasible". On Wed, Dec 16, 2009 at 3:50 PM, Martin Weiss <martin.weiss1@gmx.de> wrote: > > <> > > > Well, -clogit- does support initial values as you can see from its dialog > box and help file and from my example earlier. You can post your code that > led to the error and we can try to work out the problem that leads to the > error message. Also -set trace on- and report the area around the error... > > See -xtmixed- for an example where the -from()- option is indeed not > allowed... > > > HTH > Martin > > > -----Ursprüngliche Nachricht----- > Von: owner-statalist@hsphsun2.harvard.edu > [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von joachim jarreau > Gesendet: Mittwoch, 16. Dezember 2009 15:47 > An: statalist@hsphsun2.harvard.edu > Betreff: Re: st: AW: clogit, "initial values not feasible" error > > thank you. I tried this, but i get "time-series operators not allowed" > as response to the -clogit- line. That help file indicates that "Not > all estimators in Stata support this option", i guess its the case > here. > Thanks nonetheless > > j. > > > > On Wed, Dec 16, 2009 at 3:07 PM, Martin Weiss <martin.weiss1@gmx.de> wrote: >> >> <> >> >> Taking a cue from -h maximize-, the technical way to do this would be: >> >> >> ************* >> webuse union, clear >> >> reg union age grade /* >> */ not_smsa south black >> >> mat A=e(b) >> >> clogit union age grade /* >> */ not_smsa south black, /* >> */ group(idcode) from(A, skip) >> ************* >> >> I have no idea, though, whether this is appropriate for your > circumstances. >> The help file remarks that "Only in rare circumstances would you ever need >> to specify any of these options..." >> >> >> HTH >> Martin >> >> >> -----Ursprüngliche Nachricht----- >> Von: owner-statalist@hsphsun2.harvard.edu >> [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von joachim > jarreau >> Gesendet: Mittwoch, 16. Dezember 2009 15:00 >> An: statalist@hsphsun2.harvard.edu >> Betreff: Re: st: AW: clogit, "initial values not feasible" error >> >> http://www.stata.com/statalist/archive/2009-01/msg00732.html >> >> >> >> On Wed, Dec 16, 2009 at 2:34 PM, Martin Weiss <martin.weiss1@gmx.de> > wrote: >>> >>> <> >>> >>> >>> " In searching through precedent posts on the topic, i found a >>> reference to a possibility to feed results from an OLS estimation into >>> a clogit estimation. How can one do this? do you think it would help?" >>> >>> Post the link to the post in question as a first step! >>> >>> >>> HTH >>> Martin >>> >>> >>> -----Ursprüngliche Nachricht----- >>> Von: owner-statalist@hsphsun2.harvard.edu >>> [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von joachim >> jarreau >>> Gesendet: Mittwoch, 16. Dezember 2009 14:26 >>> An: statalist@hsphsun2.harvard.edu >>> Betreff: st: clogit, "initial values not feasible" error >>> >>> Hi statalist, >>> >>> I am trying to fit a conditional logit model on some 160,000 obs.; >>> there are about 150 groups spanning 11 years. In the specification Id >>> want to include 3 additional sets of fixed effects; so that the >>> command line is of the type : >>> >>> clogit export x1 x2 x3 provd* secd* yeard*, group(country) >>> >>> where "export" is a binomial variable for positive exports in a given >>> sector and year, from a province to a given country. "provd", "secd" >>> and "yeard" are corresponding sets of dummies. >>> I get "initial values not feasible" (r1400) as error message. >>> Ive got two questions: >>> >>> - What is the critical aspect that makes this specification to heavy >>> to implement/prevents convergence? what should I cut? Do you think >>> there are too many observations, too many dummy variables, or both? >>> (Im am trying these alternative solutions, but any indication >>> concerning a preferred direction to search would be helpful). >>> >>> - In searching through precedent posts on the topic, i found a >>> reference to a possibility to feed results from an OLS estimation into >>> a clogit estimation. How can one do this? do you think it would help? >>> >>> Thank you in advance for any advice. >>> >>> Cheers, >>> >>> joachim >>> * >>> * 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: clogit, "initial values not feasible" error***From:*joachim jarreau <joachim.jarreau@gmail.com>

**Re: st: AW: clogit, "initial values not feasible" error***From:*joachim jarreau <joachim.jarreau@gmail.com>

**Re: st: AW: clogit, "initial values not feasible" error***From:*joachim jarreau <joachim.jarreau@gmail.com>

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