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From |
May Boggess <mboggess@stata.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Equality of means and pweights |

Date |
08 Jul 2003 17:01:19 -0500 |

Daniel, I am not sure what you mean when you say the dependent variable is ordinal AND continuous, so I am just going to assume it's a continuous numerical variable. I'll be calling this variable y. I'll call the independent variable x, which I'll assume is numerical, but discrete (discrete because I am supposing you want to test the means of y over the levels of the factor x). I'll also suppose the pweights are in a variable called p. To keep the observations between the first and forth quartile then drop the observations you don't need by doing: summarize y, detail drop if y > r(p75) drop if y < r(p25) (By changing y to x in these lines of code you will drop the observations that are between the first and forth quartile of your independent variable x.) To do an equality of means I am supposing you want an ANOVA table, and (as you know) Stata's -anova- doesn't have a pweight option. So, here is something you could try. svyset [pweight=p] will tell Stata that p is the variable with your pweights in there. xi: svyregress y i.x will do the regression. Then use -test- to get it to tell you the significance of x: test _Ix_1 _Ix_2 (this list should contain all the dummy variables created for x) hope this is some help, May Boggess On Fri, 2003-07-04 at 16:43, DANIEL CARO wrote: > Dear Statalisters, > > I'm trying to test the equality of means of a dependent variable (ordinal > and continuous) between the first and fourth quartile of an independent > variable (in quartiles). Do you know of any command to perform this test > that can handle pweights? > > Thanks a lot for your help, > > Daniel > > > > * > * 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/ * * 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**:**st: Equality of means and pweights***From:*"DANIEL CARO" <dcaro@minedu.gob.pe>

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