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st: lowess with CI with/without controls
From
Guy Grossman <[email protected]>
To
[email protected]
Subject
st: lowess with CI with/without controls
Date
Thu, 15 Jul 2010 12:58:09 -0400
Dear Statlist
I am running the following lowess model, and have two questions:
lowess y x, bx(.3)
1. Is it possible to graph the lowess smoothing function with
confidence intervals? I read in a past thread a recommendation to use
bootstrap SEs. http://www.stata.com/statalist/archive/2006-10/msg00651.html
.However since `ereturn list' is empty, I am not sure how I can
set-up a bootstrap simulation. recommendations for a possible Stata
code would be highly appreciated.
2. Secondly, is there an option to run the lowess smoothing of y on x,
controlling for X (Matrix of individual-level controls)?
Thanks!
Guy
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