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RE: st: superimpose 45 degree line in -scatter-


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: superimpose 45 degree line in -scatter-
Date   Sun, 7 Mar 2004 16:45:52 -0000

A gradient of .3 doesn't give you a 30 degree line. 

Setting aside any question of aspect ratio, a gradient 
of .3 corresponds to about 17 degrees. 

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

> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu]On Behalf Of Dimitriy V.
> Masterov
> Sent: 07 March 2004 16:35
> To: statalist@hsphsun2.harvard.edu
> Subject: Re: st: superimpose 45 degree line in -scatter-
> 
> 
> 
> 
> For adding lines, my quick and dirty solution is to plot x 
> against x and
> not label the line, using twoway command. This will give you 
> a 45 line.
> You can define some variables to give you any slope you want. 
> For example,
> if you wanted a 30 line.
> 
> gen h=_n;
> gen v=.3*x;
> 
> Here is the command:
> 
> twoway (scatter y x, sort) (line v x),  legend(off);
> 
> Perhaps there is a more elegant way.
> 
> DVM
> 
> 
> On Sun, 7 Mar 2004 absc11@bangor.ac.uk wrote:
> 
> > Dear Statalisters,
> >
> > I'm using Stata 8 and I would like to know whether and how 
> it is possible to
> > superimpose a 45 degree line, a 30 degree line, etc over a 
> -scatter- graph.
> >
> > Further, does Stata support graphs in polar coordinate 
> planes? Or did someone
> > wrote something on this?
> >
> > many thanks in advance,
> > Dimitris Christodoulou
> >
> > --
> > This mail sent through http://webmail.bangor.ac.uk
> > *
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> >
> 
> ______________________________________________________________
> _________________
> Dimitriy V. Masterov
> 
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