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st: Using Margins within a Bootstrapped Program
From
"Stephen Kay (CWW)" <[email protected]>
To
<[email protected]>
Subject
st: Using Margins within a Bootstrapped Program
Date
Fri, 26 Aug 2011 16:04:46 +0100
I'm trying to generate a graph showing bootstrapped confidence intervals
of predicted probabilities (Y axis) from a logit model with price on the
X axis.
There are many ways of doing this but can someone please tell me why the
following command returns a "no observations" error message, and can
they suggest how it can be remedied without taking out the Margins
command.
sysuse auto,clear
program define ste, eclass
logit foreign price mpg
margins, at(mpg=21.29 price=(3000(1000)12000)) nose
tempname bb
matrix `bb' =r(b)
ereturn post `bb'
ereturn local cmd="bootstrap"
end
bootstrap _b, reps(10): ste
Many thanks,
Steve
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