--- On Thu, 16/7/09, Nils Braakmann wrote:
> I am currently estimating more-way fixed effects
> regressions using Thomas Cornelissens
> felsdvreg-command (Cornelißen, T. > [2008]: The
> stata module felsdvreg to estimate a linear model with two
> high-dimensional fixed effects, The Stata Journal, 8(2),
> pp. 170-189.) using linear splines in x. After estimation
> I want to graph the relationship between the outcome and x
> (which is not the problem) and add confidence intervals
> that reflect the fact that not all of the estimates
> parameters are significant (similar to -lpoly y x, ci-).
> Unfortunately, I can't get the last part to work.
*-------------------- begin example -------------------
use http://www.stata-press.com/data/r10/nlswork, clear
xtset idcode year
mkspline agespl 20 = age, dis
xtreg ln_wage agespl*, fe cluster(idcode)
predict yhat
predict se, stdp
gen lb = yhat - 1.96*se
gen ub = yhat + 1.96*se
twoway rarea lb ub age, sort || ///
line yhat age, sort
*------------------- end example ----------------------
Hope this helps,
Maarten
-----------------------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany
http://home.fsw.vu.nl/m.buis/
-----------------------------------------
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