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From |
"Tobias Hofmann" <thofmann@uni-hd.de> |

To |
<statalist@hsphsun2.harvard.edu> |

Subject |
RE: st: Fixed-effects and the ordered logit/probit model |

Date |
Mon, 6 Sep 2004 18:14:08 +0200 |

Dear Mark, Thanks for your help and sorry! I just found out that I mistook -rfprobit- for -reoprob-. That was the (major) problem. Best, Tobias -----Original Message----- From: owner-statalist@hsphsun2.harvard.edu Sent: Monday, September 06, 2004 4:52 PM To: statalist@hsphsun2.harvard.edu; Tobias Hofmann Subject: RE: st: Fixed-effects and the ordered logit/probit model Tobias, Quoting Tobias Hofmann <thofmann@uni-hd.de>: > Dear all, > > This is a small "update" to the problem I posted before. > > Using a different ordered categorical dependent variable, Stata 8.2 > doesn't tell me that the "outcome does not vary" this time. However, > the output is as mysterious as before. Besides, -search r(2000)- is > not particularly instructive. > > . rfprobit y2 x1 x2, i(country) -rfprobit- is a user-written random-effects probit, so it isn't making use of the ordering. Is this what you intended? If so, you might want to try -xtprobit-, which is the official Stata random-effect probit routine. --Mark > > Constant-only model > rho = 0.0 Log Likelihood = -115.33963 > rho = 0.1 Log Likelihood ~ -71.47475 > rho = 0.2 Log Likelihood ~ -53.679395 > rho = 0.3 Log Likelihood ~ -43.642044 > rho = 0.4 Log Likelihood ~ -37.060202 > rho = 0.5 Log Likelihood ~ -31.396172 > rho = 0.6 Log Likelihood ~ -25.898749 > rho = 0.7 Log Likelihood ~ -21.31849 > rho = 0.8 Log Likelihood ~ -18.051591 > rho = 0.9 Log Likelihood ~ -15.209674 > Iteration 0: Log Likelihood = -15.209674 (nonconcave function > encountered) rho >= 1, set to rho = 0.99 rho >= 1, set to rho = 0.99 > rho >= 1, set to rho = 0.99 Iteration 1: Log Likelihood = -10.397214 > (nonconcave function encountered) no observations r(2000); > > Does anyone have an idea? > > Yours, > Tobias * * For searches and help try: * http://www.stata.com/support/faqs/res/findit.html * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**References**:**RE: st: Fixed-effects and the ordered logit/probit model***From:*Mark Schaffer <M.E.Schaffer@hw.ac.uk>

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