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Re: st: Weighted summary table in STATA
From
Steve Samuels <[email protected]>
To
[email protected]
Subject
Re: st: Weighted summary table in STATA
Date
Tue, 8 Jun 2010 17:28:42 -0400
So, "whether the data are weighted or not" was not correct!
On Tue, Jun 8, 2010 at 5:28 PM, Steve Samuels <[email protected]> wrote:
> That's because there are only 69 observations with non-missing rep78.
>
> Steve
>
> On Tue, Jun 8, 2010 at 5:16 PM, Martin Weiss <[email protected]> wrote:
>>
>> <>
>>
>> " The number of observations stays same at n =69, whether the data are
>> weighted or not"
>>
>>
>>
>> Really? The nobs displayed by -ssc d outreg2- jump to 74 for me w/o the
>> weighting:
>>
>> ***********
>> sysuse auto, clear
>> reg price weight length /*[iw=rep78] */
>> outreg2 using myfile, replace sum
>> ***********
>>
>>
>> HTH
>> Martin
>>
>>
>> -----Original Message-----
>> From: [email protected]
>> [mailto:[email protected]] On Behalf Of Steve Samuels
>> Sent: Dienstag, 8. Juni 2010 23:12
>> To: [email protected]
>> Subject: Re: st: Weighted summary table in STATA
>>
>> Ali is wrong. -outreg2- does indeed output weighted coefficients.
>> The number of observations stays same at n =69, whether the data are
>> weighted or not; perhaps that is why he thinks that the results are
>> not weighted.
>>
>> Steve
>>
>>
>> On Tue, Jun 8, 2010 at 2:36 PM, Martin Weiss <[email protected]> wrote:
>>>
>>> <>
>>>
>>> But really Michael, I am not sure whether this is the answer to the
>>> question. Ali seems to be quite happy with his regression, he just wants
>> it
>>> displayed properly.
>>>
>>> So the -sum- option gives him an "unweighted" summary. But Ali, from the
>>> fact that the # of obs is reduced to 69, b/c of 5 missings in "rep78", you
>>> can infer that the weights are indeed respected in the output:
>>>
>>> ***********
>>> sysuse auto, clear
>>> reg price weight length [iw=rep78]
>>> outreg2 using myfile, replace sum
>>> ***********
>>>
>>>
>>> HTH
>>> Martin
>>>
>>> -----Original Message-----
>>> From: [email protected]
>>> [mailto:[email protected]] On Behalf Of Michael N.
>>> Mitchell
>>> Sent: Dienstag, 8. Juni 2010 18:43
>>> To: [email protected]
>>> Subject: Re: st: Weighted summary table in STATA
>>>
>>> Dear Ali
>>>
>>> First off, you will want to determine the "kind" of weight that you
>> have.
>>> You can see
>>>
>>> http://www.stata.com/help.cgi?pweight
>>>
>>> which talks about the different kinds of weights.
>>>
>>> Say that you determine that your weights are -pweights- and your weight
>>> variable is
>>> named -wt-. You can use such weights in an OLS regression like this...
>>>
>>> . regress y x1 x2 x3 [pw=wt]
>>>
>>> I hope this helps,
>>>
>>> Michael N. Mitchell
>>> Data Management Using Stata -
>> http://www.stata.com/bookstore/dmus.html
>>> A Visual Guide to Stata Graphics -
>> http://www.stata.com/bookstore/vgsg.html
>>> Stata tidbit of the week - http://www.MichaelNormanMitchell.com
>>>
>>>
>>>
>>> On 2010-06-08 9.07 AM, Ali Delpisheh wrote:
>>>> Hello,
>>>>
>>>> I was able to produce a summary table using OUTREG2. But they are not
>>>> weighted. I am running weighted regressions. How can I make them
>>>> weighted?
>>>>
>>>> Thank you,
>>>> Ali
>>>> *
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>>>
>>
>>
>>
>> --
>> Steven Samuels
>> [email protected]
>> 18 Cantine's Island
>> Saugerties NY 12477
>> USA
>> Voice: 845-246-0774
>> Fax: 206-202-4783
>>
>> *
>> * 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/
>>
>
>
>
> --
> Steven Samuels
> [email protected]
> 18 Cantine's Island
> Saugerties NY 12477
> USA
> Voice: 845-246-0774
> Fax: 206-202-4783
>
--
Steven Samuels
[email protected]
18 Cantine's Island
Saugerties NY 12477
USA
Voice: 845-246-0774
Fax: 206-202-4783
*
* 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/