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From |
Phil Clayton <philclayton@internode.on.net> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Obtaining random intercept for each group from xtlogit or xtmelogit |

Date |
Thu, 21 Jul 2011 06:55:04 +1000 |

Yes, from the model you've specified each country should have the same intercept. Given how tiny those standard deviations are I would guess this is simply a computer precision issue. Phil On 21/07/2011, at 2:26 AM, Orian Brook wrote: > Brilliant, thank you > > I was expecting the intercepts to be common across countries - however, some > have standard deviations (tiny, but still). Am I misunderstanding? > > Summary of random effects for > NATION COUNTRY: _cons > (SAMPLE) Mean Std. Dev. Freq. > > BELGIUM .08866321 . 1040 > DENMARK .85474342 1.179e-07 1008 > GERMANY W .44680032 . 1006 > GERMANY E .66576046 . 528 > GREECE -.70365345 . 1000 > SPAIN .0415894 . 1006 > FINLAND .69681209 . 1040 > FRANCE -.02973256 . 1031 > IRELAND .19429855 1.667e-08 1000 > ITALY -.05471432 . 1000 > LUXEMBOUR .94192523 9.375e-08 500 > NETHERLAN 1.0726261 0 1000 > AUSTRIA .14302817 . 1011 > PORTUGAL -.53366905 . 1013 > SWEDEN 1.2025346 . 1011 > GREAT BRI .64745915 . 1009 > NORTHERN .32294551 . 301 > CYPRUS (R -.52049023 . 500 > CZECH REP .73380858 . 1060 > ESTONIA .51977873 0 1001 > HUNGARY .11004449 . 1000 > LATVIA .6622172 . 1006 > LITUANIA .10387274 1.520e-08 1029 > MALTA .13686518 . 500 > POLAND -.42845824 . 1000 > SLOVAKIA .4025459 . 1094 > SLOVENIA .4127627 . 1015 > BULGARIA -.67533928 . 1009 > ROMANIA -.59633559 7.265e-08 1028 > CROATIA -6.7901573 0 1000 > > Total -.02248435 1.4072492 27746 > > -----Original Message----- > From: owner-statalist@hsphsun2.harvard.edu > [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Phil Clayton > Sent: 20 July 2011 14:57 > To: statalist@hsphsun2.harvard.edu > Subject: Re: st: Obtaining random intercept for each group from xtlogit or > xtmelogit > > After xtmelogit try: > predict rintercept, reffects > > Phil > > On 20/07/2011, at 11:10 PM, Orian Brook wrote: > >> Dear all >> >> I'm have data on a binary outcome which is organised as respondents >> within countries. What I really want to know is the random intercept >> for each country, but I can't see how to get it - could anyone point >> me? (I was previously not using a multilevel approach and had a dummy >> variable for each country, to get the country effect - but I realised >> I really should try a multilevel approach). >> >> The syntax I'm using is >> >> xi:xtmelogit QA4_PERF VD8 i.D10 VD11 i.C14 i.QB3 i.D25 || COUNTRY: >> xi:xtlogit QA4_PERF VD8 i.D10 VD11 i.C14 i.QB3 i.D25, i(COUNTRY) >> >> They get the same log-likelihood results, though naturally xtmelogit >> takes longer to run, I realise it has other options available. >> Thanks for any advice. >> >> >> >> * >> * 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: Obtaining random intercept for each group from xtlogit or xtmelogit***From:*Orian Brook <ob11@st-andrews.ac.uk>

**Re: st: Obtaining random intercept for each group from xtlogit or xtmelogit***From:*Phil Clayton <philclayton@internode.on.net>

**RE: st: Obtaining random intercept for each group from xtlogit or xtmelogit***From:*Orian Brook <ob11@st-andrews.ac.uk>

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