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AW: st: how to get hold of the observations used in xtreg, fe


From   Jessica �lschl�ger <[email protected]>
To   <[email protected]>
Subject   AW: st: how to get hold of the observations used in xtreg, fe
Date   Fri, 25 Jan 2008 10:50:59 +0100

This works very well, I get:

count if e(sample)
   53

. 
. su `x' if e(sample)

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
ln_openquo~d |        53   -.4636664    .5237224  -1.864518   .4685479
ln_govbala~d |        53    .1099323    .8970121  -2.465104   1.860352
ln_unemplo~t |        53   -2.820476    .5654466  -4.105608  -1.789702
ln_lgovinv~a |        53    -3.63861    .3367478  -4.362502  -2.728667
   outputgap |        53   -.0026975    .0266407    -.08008     .04783
-------------+--------------------------------------------------------
    totalpop |
         L1. |        53    30484.84    64624.11      268.9     272945
  rintratelt |        53    .0393851    .0268024  -.0852657   .0980728
         syr |        53    3.547566    .7967051      2.258      5.048
  termstrade |        53    1.006547    .0647307       .919      1.392
       fdiin |        53    29101.57     64380.1       -247     321274
-------------+--------------------------------------------------------
    t1100gdp |        53    13.70545    3.653837    7.99388   25.85768
    t1200gdp |        53    3.501216    1.436808   .9036408   8.997226
    t2000gdp |        53    6.679746    5.104838          0   14.67767
    t3000gdp |        53    .4656691    .8017646          0    3.75145
    t5000gdp |        53    11.66961    3.432847   3.984247   17.90243

But why doesn't it work the other way?
It actually doesn't work for me - I've tried it several times.

Is there a way, to list the single observations with your method?

Regards 
Jessica




-----Urspr�ngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Austin Nichols
Gesendet: Donnerstag, 24. Januar 2008 20:03
An: [email protected]
Betreff: Re: st: how to get hold of the observations used in xtreg, fe

Jessica �lschl�ger :
I doubt this claim.  Can you show the output of e.g.

loc x "ln_openquota_oecd ln_govbaladj_oecd ln_unemployment
ln_lgovinvquota outputgap l.totalpop rintratelt syr termstrade fdiin
t1100gdp t1200gdp t2000gdp t3000gdp t5000gdp"

xtreg gwgdpvdpc `x' if year >=1990, fe
count if e(sample)
su `x' if e(sample)

instead of -list- output?

On Jan 24, 2008 1:49 PM, Jessica �lschl�ger
<[email protected]> wrote:
> Dear Statalisters,
>
> I'm running a fixed effects regression (xtreg, fe) using an unbalanced
panel
> dataset.

xtreg gwgdpvdpc  ln_openquota_oecd ln_govbaladj_oecd  ln_unemployment
> ln_lgovinvquota  outputgap l.totalpop   rintratelt syr   termstrade  fdiin
> t1100gdp t1200gdp t2000gdp t3000gdp t5000gdp  if year >=1990, fe)

Stata gives me the following output:
>
> Fixed-effects (within) regression             Number of obs      =
53
> Group variable: coid                          Number of groups   =
14

> I would like to get hold of the 53 observations stata uses for the
> regression.
> But when I type
> list if e(sample)
> Stata gives me back a lot more observations than just 53 (see below).
> (shortened)

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