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AW: st: Graphing contents of a local?


From   "Martin Weiss" <[email protected]>
To   <[email protected]>
Subject   AW: st: Graphing contents of a local?
Date   Sun, 20 Jan 2008 18:48:55 +0100

Thank you, Nick, I was not even aware of the "recast" option, but comforting
to know that there was someone who did... Stata`s 16 manuals are not easily
digested, to say the least. The array of options is often overwhelming, even
for users who consider themselves above the beginner level...

Martin Weiss
_________________________________________________________________

Diplom-Kaufmann Martin Weiss
Mohlstrasse 36
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72074 Tuebingen
Germany

Fon: 0049-7071-2978184

Home: http://www.wiwi.uni-tuebingen.de/cms/index.php?id=1130

Publications: http://www.wiwi.uni-tuebingen.de/cms/index.php?id=1131

SSRN: http://papers.ssrn.com/sol3/cf_dev/AbsByAuth.cfm?per_id=669945


-----Urspr´┐Żngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Nick Cox
Gesendet: Sonntag, 20. Januar 2008 18:30
An: [email protected]
Betreff: RE: st: Graphing contents of a local?

There _is_ scope for graphing the contents of a local. 
The following code shows some technique. 

local x = 1 
 
foreach num of numlist 90 95 99 99.5 99.9 99.99{
       cii 12 0, level(`num')
       local plot `plot' `r(ub)' `x' 
	 local label `label' `x' "`num'" 
	 local ++x
}
 
twoway scatteri `plot', recast(line) xla(`label') ///
	ytitle(upper bound) xtitle(level)

Nick
[email protected] 

Maarten buis

--- Martin Weiss <[email protected]> wrote:
> If I want to graph the development of the upper bound of a binomial
> ci, as in:
> 
> local ub
> 
> foreach num of numlist 90 95 99 99.5 99.9 99.99{
>       cii 12 0, level(`num')
>       local ub `ub' `r(ub)'
> }
> 
> tempvar ra
> range `ra' 1 6
> 
> line `ub' `ra'
> 
> how do I get Stata to recognize the contents of the local for the
> line graph? 

You can't. You can create a "data file" with the upper bounds and plot
that:

*------------------------- begin example ------------------
drop _all
input alpha
90 
95 
99 
99.5 
99.9 
99.99
end 

gen ub = .
local i = 1
foreach num of numlist 90 95 99 99.5 99.9 99.99 {
      cii 12 0, level(`num')
      replace ub = `r(ub)' in `i++'
}

line ub alpha
*------------------- end example --------------------
(For more on how to use examples I sent to the Statalist, see
http://home.fsw.vu.nl/m.buis/stata/exampleFAQ.html )


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