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From |
"antonio rodriguez" <[email protected]> |

To |
[email protected] |

Subject |
Re: st: Re: comparing coefficients in different regressions |

Date |
Mon, 14 Jan 2008 17:15:38 +0100 |

It doesnt work global malesuic (divper_lag income_lag gini_xpg alcohtot gunhomper unempl p1019 p65 pctcatholic pcprotestant pctmormon pctbabtispt i1-i51 ) global femalesuic (divper_lag income_lag gini_xpg alcohtot gunhomper unempl p1019 p65 pctcatholic pcprotestant pctmormon pctbabtispt i1-i51 ) sureg $malesuic $femalesuic I got the message singular matrix, i am trying to estimate a fixed effects model test [malesuic] gunhomper = [femalesuic] gunhomper On Jan 14, 2008 4:57 PM, Kit Baum <[email protected]> wrote: > Stata is unable to see that your test of x==x makes no sense... In > the suest context, this is a multiple-equation system, so you must > compare gunhomper in the malesuic equation with that in the > femalesuic equation. Check -help test- for how to specify constraints > in a multiple-equation system, i.e. in the -sureg- context. > > > Kit Baum, Boston College Economics and DIW Berlin > http://ideas.repec.org/e/pba1.html > An Introduction to Modern Econometrics Using Stata: > http://www.stata-press.com/books/imeus.html > > > On Jan 14, 2008, at 10:52 AM, antonio rodriguez wrote: > > > I got this result, there must be something wrong, right? > > > > ***Fixed effects with the dependent variable (male suicide rate)*** > > > > regress malesuic divper_lag income_lag gini_xpg alcohtot gunhomper > > unempl p1019 p65 pctcatholic pcprotestant pctmormon pctbabtispt > > i1-i51 [aw=pop] > > estimates store male > > regress femalesuic divper_lag income_lag gini_xpg alcohtot gunhomper > > unempl p1019 p65 pctcatholic pcprotestant pctmormon pctbabtispt > > i1-i51 [aw=pop] > > estimates store female > > > > suest male female > > test gunhomper = gunhomper > > test gunhomper = gunhomper > > > > ( 1) = 0 > > Constraint 1 dropped > > > > chi2( 0) = . > > Prob > chi2 = . > > > > . > > end of do-file > > > > > > On Jan 14, 2008 2:13 PM, Kit Baum <[email protected]> wrote: > >> Antonio > >> > >> If your message is not going through to Statalist it is because you > >> are not subscribed to Statalist from this address or you are sending > >> it in some form other than straight ASCII. > >> > >> The areg command is not supported by suest. It does not seem that the > >> logical equivalent, xtreg,fe, is either. If the number of values of > >> state is not too large, you could perform the within transformation > >> "by hand" and use regress on each equation, and suest thereafter. > >> Alternatively you could use the demeaned data in sureg, which would > >> support the tests you want. > >> > >> Best wishes > >> Kit > >> > >> Kit Baum, Boston College Economics and DIW Berlin > >> http://ideas.repec.org/e/pba1.html > >> An Introduction to Modern Econometrics Using Stata: > >> http://www.stata-press.com/books/imeus.html > >> > >> > >> On Jan 14, 2008, at 7:57 AM, antonio rodriguez wrote: > >> > >>> Dear Kit > >>> > >>> I am just trying to post this message on the STATA list but the > >>> email > >>> gets back to me. I dont know if you could help me with my > >>> question or > >>> forward it to stata list > >>> > >>> I just want to test wheter there is a statistical difference between > >>> the same variables for different regressions with different > >>> dependent > >>> variables > >>> > >>> areg femalesuic divper_lag income_lag gini_xpg alcohtot gunaccid > >>> unempl p1019 p65 pctcatholic pcprotestant pctmormon pctbabtispt > >>> [aw=pop], absorb(state) > >>> estimates store est_1 > >>> > >>> areg femalesuic_re divper_lag income_lag gini_xpg alcohtot > >>> gunaccid_re unempl p1019 p65 pctcatholic pcprotestant pctmormon > >>> pctbabtispt [aw=pop], absorb(state) > >>> estimates store est_2 > >>> > >>> suest est_* > >>> > >>> test gunaccid = gunaccid_re > >>> > >>> -- > >>> Antonio Rodr�guez Andr�s > >>> Profesor Visitante > >>> Departamento de Economia y Finanzas > >>> Universidad de Castilla La Mancha > >>> Albacete, Espa�a > >> > >> > > > > > > > > -- > > Antonio Rodr�guez Andr�s > > Profesor Visitante > > Departamento de Economia y Finanzas > > Universidad de Castilla La Mancha > > Albacete, Espa�a > > > * > * 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/ > -- Antonio Rodr�guez Andr�s Profesor Visitante Departamento de Economia y Finanzas Universidad de Castilla La Mancha Albacete, Espa�a * * 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/

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