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RE: st: AW: simple "graph twoway, b()" question


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: AW: simple "graph twoway, b()" question
Date   Wed, 25 Feb 2009 17:30:30 -0000

You may get better control by specify -xla()- instead. 

Nick 
n.j.cox@durham.ac.uk 

Martin Weiss


Well,  how close is the third line in my suggestion

line le year, xsc(r(1850 2006)) by(x)

to your desired work-around?

Markus Pannenberg

Thanks Martin, you are right! (I also figured this out before sending
my e-mail to the stata-list....).

However: Does anyone know a work-around...?

On Wed, Feb 25, 2009 at 5:53 PM, Martin Weiss <martin.weiss1@gmx.de> wrote:
>
> The thing - in my view - is that not every -twoway- option carries over to
> the -by- options. See

> help by_option

Try

sysuse uslifeexp, clear
set seed 1001
g x =runiform()>0.5
line le year, by(x)
line le year, xsc(r(1850 2006))
line le year, xsc(r(1850 2006)) by(x)
line le year, by(x, xsc(r(1850 2006)))

and note the different behavior.

Markus Pannenberg

> I have a simple "graph twoway, by()" question:
>
> When I type:
>
> (1) twoway (line gdp year),  by(country),
>
> Stata creates a graph with plots for all countries and a range for the
> x axis starting in 2000 though the minimum of the variable year is
> 2001!
>
>
> When I type:
>
> (2) twoway (line gdp year),  xsc(r(2001 2006)),
>
> Stata creates a graph with a range for the x axis starting in 2001.
>
> However, when I combine (1) and (2), i.e.
>
> (3) twoway (line gdp year), by(country, xsc(r(2001 2006)))
>
> Stata tells me: "option xsc() not allowed" r(198)!

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