st: Graphing regression models

[David Torres <writeon4truth2@msn.com>]

Hello,

I have some two-level model output that I would like to graph, but am not familiar with the process of going about doing this. HLM7 makes it look easy, but Stata is a bit more complicated.

About my models:

1. I don't know if it matters, but one of the predictors is instrumented, so I'm using the -xtivreg- command to run the models.

2. At level 1 I have my intercept, the linear and quadratic functional forms for age, and three other time-varying coefficients.

3. At level 2 I have a number of demographic variables, among them race, gender, poverty status.

What I would like to graph:

I would like to graph the curves for race (i.e., cross-level interactions with the intercept and the linear and quadratic age variables). (See model 1 below, specifically the variables black, hispan, othrace, y2, y3, y4, yy2, yy3, yy4.)

And I would like to graph the curves for race when I add an additional cross-level interaction (besides those in the preceding line) with a third time-varying variable. (See the additional race dummy interactions with the third time-varying variable diffsch in model 2; they are d2, d3, and d4.)

CAN SOMEONE PLEASE ASSIST ME?
(1)	(2)
smsc	smsc
diffsch	12.44	24.49**
(7.747)	(7.825)
outzone	-0.705	-0.992
(1.570)	(1.781)
female	5.297***	5.181**
(1.104)	(1.989)
black	-23.22***	-18.59***
(2.719)	(3.267)
hispan	-25.64***	-17.40***
(2.650)	(3.078)
othrace	4.346	12.99*
(3.115)	(5.325)
c_medrent	0.873	1.716**
(0.700)	(0.543)
c_medvehic	0.880	0.807*
(0.496)	(0.390)
c_medhhinc	4.659***	5.663***
(1.017)	(0.776)
c_medage	1.116*	1.372***
(0.460)	(0.397)
c_pctminor	1.659**	0.620
(0.567)	(0.434)
civic	-0.923*	-1.687***
(0.448)	(0.371)
relig	0.0983	-0.0950
(0.201)	(0.163)
socadv	1.102	2.286***
(0.773)	(0.646)
year	54.37***	54.24***
(1.331)	(2.049)
y0	0.156	1.399
(1.269)	(1.882)
y1	-3.039***	-2.563*
(0.841)	(1.293)
y2	-4.026**	-4.412*
(1.436)	(2.209)
y3	2.483	2.211
(1.408)	(2.166)
y4	13.07***	12.76***
(2.274)	(3.507)
yearsq	-2.650***	-2.497***
(0.328)	(0.502)
yy0	0.219	-0.0960
(0.314)	(0.467)
yy1	0.921***	0.703*
(0.207)	(0.317)
yy2	-0.249	-0.117
(0.354)	(0.542)
yy3	-0.695*	-0.575
(0.347)	(0.531)
yy4	-2.597***	-2.666**
(0.560)	(0.859)
d1		-0.596
(10.243)
d2		13.15
(11.362)
d3		-20.70*
(9.736)
d4		-22.60
(17.622)
_cons	499.9***	494.1***
(3.228)	(2.778)
N	28021	28021 		 	   		  
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