Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: st: ANCOVA using only summary data
From
Marcos Vinicius <[email protected]>
To
[email protected]
Subject
Re: st: ANCOVA using only summary data
Date
Thu, 22 Nov 2012 02:21:05 -0800
Yes I would like to compare a continuous outcome variable among the 3 groups adjusting to a baseline covariate.
Unfortunately my data does not include the correlations you have cited.
Thanks
Vinicius
> -----Original Message-----
> From: [email protected]
> Sent: Thu, 22 Nov 2012 02:17:16 -0800
> To: [email protected]
> Subject: Re: st: ANCOVA using only summary data
>
> Thank you David.Helped a lot.
> Vinicius.
>
>> -----Original Message-----
>> From: [email protected]
>> Sent: Wed, 21 Nov 2012 15:25:56 -0500
>> To: [email protected]
>> Subject: Re: st: ANCOVA using only summary data
>>
>> Hi, Vinicius.
>>
>> Did you mean to say that you would like to compare a continuous
>> outcome variable among the 3 groups?
>>
>> Do your summary data include the correlation between the outcome and
>> the baseline measure within each of the 3 groups? If so, it may be
>> possible to derive the quantities that you need for the analysis of
>> covariance (I haven't worked out the details). If not, the answer is
>> No.
>>
>> David Hoaglin
>>
>> On Wed, Nov 21, 2012 at 11:50 AM, Marcos Vinicius
>> <[email protected]> wrote:
>>> Hello,
>>> Is there a way to perform ANCOVA using only a summary data ( mean ,N,
>>> SD)? If yes someone could share the stata code ?
>>> Many thanks,
>>> Vinicius.
>>> P.s:I would like to compare a continuous covariate among 3 groups
>>> adjusting for baseline measure.
>> *
>> * For searches and help try:
>> * http://www.stata.com/help.cgi?search
>> * http://www.stata.com/support/faqs/resources/statalist-faq/
>> * http://www.ats.ucla.edu/stat/stata/
>
> ____________________________________________________________
> FREE 3D EARTH SCREENSAVER - Watch the Earth right on your desktop!
> Check it out at http://www.inbox.com/earth
____________________________________________________________
FREE 3D EARTH SCREENSAVER - Watch the Earth right on your desktop!
Check it out at http://www.inbox.com/earth
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/faqs/resources/statalist-faq/
* http://www.ats.ucla.edu/stat/stata/