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Re: st: Re: RE: RE: Re: Re: Displaying mean in boxplot


From   "Aca N.T." <acant29@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Re: RE: RE: Re: Re: Displaying mean in boxplot
Date   Mon, 13 Oct 2008 15:50:09 +0700

Thanks Nick, it works well. I didnt get any error message as Martin did..

Aca.

On Mon, Oct 13, 2008 at 5:12 AM, Martin Weiss <martin.weiss1@gmx.de> wrote:
> Is "mean" defined somewhere in this code? I get "r(111)" "variable mean not
> found"...
>
> HTH
> Martin
> _______________________
> ----- Original Message ----- From: "Nick Cox" <n.j.cox@durham.ac.uk>
> To: <statalist@hsphsun2.harvard.edu>
> Sent: Sunday, October 12, 2008 8:05 PM
> Subject: st: RE: RE: Re: Re: Displaying mean in boxplot
>
>
>> Example of orthodox box plot follows. N.B. that this requires prior
>> installation of -egenmore- from SSC.
>>
>> sysuse auto, clear
>>
>> egen adju = adju(mpg), by(foreign)
>>
>> egen adjl = adjl(mpg), by(foreign)
>>
>> egen loq = pctile(mpg), by(foreign) p(25)
>>
>> egen upq = pctile(mpg), by(foreign) p(75)
>>
>> stripplot mpg, ///
>> over(foreign) ms(none) box(bfcolor(ltblue)) yla(, noticks) pstyle(p1)
>> ///
>> addplot(rcap adjl adjl foreign, horizontal pstyle(p1) ///
>>   ||  rcap adju adju foreign, horizontal pstyle(p1) ///
>>   ||  rspike upq adju foreign, horizontal pstyle(p1) ///
>>   ||  rspike loq adjl foreign, horizontal pstyle(p1) ///
>>   ||  scatter foreign mpg if !inrange(mpg, adjl, adju), mcolor(navy)
>> ///
>>   ||  scatter foreign mean, ms(D) mcolor(navy)  msize(*2))
>>
>> Nick
>> n.j.cox@durham.ac.uk
>>
>> Nick Cox
>>
>> One way to do this through marker symbols, as requested, is through
>> -stripplot- from SSC.
>>
>> sysuse auto, clear
>>
>> egen mean = mean(mpg), by(foreign)
>>
>> stripplot mpg, over(foreign) box stack centre height(0.2) ms(sh)
>> addplot(scatter foreign mean, ms(Dh) msize(*3))
>>
>> With more work, you can come arbitrarily close to more conventional
>> forms of the box plot.
>>
>> Nick
>> n.j.cox@durham.ac.uk
>>
>> Martin Weiss
>>
>> Admittedly, my earlier solution did not give you the dot you were
>> looking
>> for, but a reference line. If you have Stata 10, fire up the graph
>> editor
>> afterwards, use the -add marker- tool and place the marker onto the
>> reference line. Then highlight the reference line and kill it...
>> If -gr box- were part of the -twoway- family of graphs, one could
>> imagine
>> overlaying it with a -scatteri- to get the mean onto the graph more
>> reliably
>> than this...
>>
>> Martin Weiss
>>
>>> **********
>>> sysuse auto, clear
>>> su price, mean
>>> graph box price, box(1, fcolor(none)) yline(`r(mean)')
>>> **********
>>
>> Aca N.T.
>>
>>>> Does anyone know how to put mean (preferably marked as dot) within
>>
>> the
>>>>
>>>> box using -gr box-?
>>
>>
>> *
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>>
>
>
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