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st: surface graph
From
James Bernard <[email protected]>
To
[email protected]
Subject
st: surface graph
Date
Wed, 23 Jan 2013 22:55:23 +0800
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
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