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Re: st: 3D plot for interaction effects
From
James Bernard <[email protected]>
To
[email protected]
Subject
Re: st: 3D plot for interaction effects
Date
Thu, 24 Jan 2013 10:08:38 +0800
Thanks Billy,
-marginsplot- was not a solution
On Wed, Jan 23, 2013 at 8:16 PM, William Buchanan
<[email protected]> wrote:
> The have you tried working with -margins- and -marginsplot- after fitting your model? I would check that out as a possibility first.
>
> HTH,
> Billy
>
> Sent from my iPhone
>
> On Jan 23, 2013, at 2:37, James Bernard <[email protected]> wrote:
>
>> Hi all,
>>
>> I am struggling with plotting main effect and interaction effect of my
>> negative-binomial model... I though Stata might have something, given
>> the popularity of these plots among empiricists
>>
>>
>>
>> This is a a fixed effect negative binomial model.... I have pace as my
>> main ID, Pace-squared, then an interaction term "Scale" and then
>> interaction of that variable with Pace and Pace-Squared.
>>
>>
>> I want to draw this where my DV is on the vertical axis and main plot
>> on the X and then interaction on Y (like a surface plot). I wonder if
>> this can be done in Stata, given that negative binomial is a nonlinear
>> model....
>>
>>
>> ----------------------------------------------------------------------------------------
>> lagpatent_f1 | Coef. Std. Err. z P>|z|
>> [95% Conf. Interval]
>> -----------------------+----------------------------------------------------------------
>> Pace | 1.494223 .5783452 2.58 0.010
>> .3606869 2.627758
>> Pace^2 | -.6852545 .2394282 -2.86 0.004
>> -1.154525 -.2159839
>> Scale | .0563032 .3031137 0.19 0.853
>> -.5377887 .650395
>> Pace*Scale | -1.551876 .8982472 -1.73 0.084
>> -3.312408 .2086566
>> Pace*Scale^2 | .849984 .4441609 1.91 0.056
>> -.0205553 1.720523
>>
>> _cons | .5746716 .2601009 2.21 0.027
>> .0648832 1.08446
>>
>>
>> Many Thanks,
>> james
>> *
>> * 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/
>
> *
> * For searches and help try:
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> * http://www.ats.ucla.edu/stat/stata/
*
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