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RE: st: graph: how to draw 45 degree reference line


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: graph: how to draw 45 degree reference line
Date   Sun, 14 Mar 2010 19:51:42 +0100

<>


If ever you did want to extend the range with Nick`s solution, e.g. to
include the origin:



*************
sysuse auto, clear

set obs 75
replace price = 0 in 75

tw scatter weight price ||  /* 
*/ line price price, sort

*************


HTH
Martin

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Airey, David C
Sent: Sonntag, 14. März 2010 19:06
To: statalist@hsphsun2.harvard.edu
Subject: RE: st: graph: how to draw 45 degree reference line

.

Ah, there's a good tip, and it avoids having to set the range with function
y=x. Thank you.

-Dave


> Plotting a variable against itself is also sufficient. 
> 
> tw scatter weight price || line price price, sort
> 
> Nick 
> n.j.cox@durham.ac.uk 
> 
> Philipp Rehm
> 
> sysuse auto, clear
> tw (scatter weight price) ///
>   (function y=x, range(0 16000))
> 
> 
> On 3/13/2010 3:13 PM, Sun, Yan (IFPRI) wrote:
> 
> > I would like to draw a y=x reference line (which is 45 degree line)
> for
> > my twoway scatter plots. 

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