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Re: st: Extracting from returned Matrix


From   "Austin Nichols" <austinnichols@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Extracting from returned Matrix
Date   Tue, 19 Feb 2008 16:22:20 -0500

Martin Weiss <martin.weiss@uni-tuebingen.de>:
You say you want to use -post- but you don't show your code, so I'm
not sure where the problem is:

webuse fuel, clear
mean mpg*, vce(bootstrap)
mat ci=e(ci_normal)
postfile t row lb ub using /tmp, replace
post t (1) (ci[1,1]) (ci[1,2])
post t (2) (ci[2,1]) (ci[2,2])
postutil clear
use /tmp
li


On Feb 19, 2008 3:37 PM, Martin Weiss <martin.weiss@uni-tuebingen.de> wrote:
> Guys,
>
> I am so sick of this: trying to extract an e()-class result stored in a
> matrix. All I want is to show the development of the upper and lower bound
> of the ci for the mean in
>
> ______________________________________
> webuse fuel
> mean mpg1 mpg2
>
> mean mpg*, vce(bootstrap, reps(100))
>
> mean mpg*, vce(bootstrap, reps(1000))
> ______________________________________
>
>
> I know the result is stored in "matrix list e(ci_normal)". Now how do I
> extract the upper and lower bound (to post them to a postfile and later plot
> the two in a tw (line ub lb) (line ub lb)-type of graph)? I can get the
> stuff into a matrix but where do I go from there? I have been reading the
> User`s guide up and down, but as far as I can tell, it dodges the
> question...
>
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