st: Re: summary stats at different levels

["Steven Proud" <steven_proud@hotmail.com>]

xtsum should work for your purposes.  - Gives within between and overall 
summary stats.
**********************************************
----- Original Message ----- 
From: "Daniel Macneil" <macneida@gse.harvard.edu>
To: <statalist@hsphsun2.harvard.edu>
Sent: Wednesday, February 13, 2008 2:17 PM
Subject: st: summary stats at different levels



> Folks,
>
> I have data arranged by 1000 individuals who come from 700 families. How 
> can i do the basic summary stats on the family level(each family is marked 
> with code), rather than the individuals? I am using xtlogit for my 
> analysis, and that works fine, but the simpler task of getting the 
> descriptive stats at the family level is perplexing me.
>
> James
>
> On Tue, 12 Feb 2008 19:27:02 -0000
>  Bidisha Sayema <lexshb@nottingham.ac.uk> wrote:
>
> > Dear Satalisters,
> >
> > I am using a two sample two stage least square method which essentially
> > involves getting predicted value of one of the explanatory variables
> > from one sample and then using that predicted value in another sample to
> > estimate the final regression. Therefore in my 1st sample I have the
> > explanatory variable X and instruments Zs and in 2nd sample I don't have
> > X but I have the dependent variable Y and same instrument set Z. In my
> > 1st stage I estimate model of X while regressing X on Zs. In the 2nd
> > stage I use the coefficients of Zs obtained from the 1st stage
> > regression with the values of Zs available in the 2nd sample to get a
> > predicted value of Xhat. This Xhat is used as a regressor in my final
> > regression of Y. However as I am using predicted value of Xhat in my
> > final regression, I need to correct the standard errors manually. It
> > would be greatly appreciated if someone inform me how to do it in STATA.
> >
> > Regards
> > Bidisha *ps: I am having problem while receiving mails from statalist 
> > therefore
> > it would be appreciated if you also reply to the other address in this
> > mail. This message has been checked for viruses but the contents of an 
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> >
> >
> >
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> D. James MacNeil
> Doctoral Candidate
> Harvard Graduate School of Education
> macneida@gse.harvard.edu
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