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RE: st: RE: Graph axis labelling range


From   "Steichen, Thomas J." <SteichT@rjrt.com>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: RE: Graph axis labelling range
Date   Tue, 20 Feb 2007 12:50:57 -0500

A nice cross between my proposal and Scott's is 

twoway scatter mpg price, ylabel(minmax,nogrid)  /// 
xlabel(minmax) yscale(nofextend) xscale(nofextend) plotregion(lcol(none))

This is clean and simple but gives the default gap.

Tom

-----------------------------------
Thomas J. Steichen
steicht@rjrt.com
-----------------------------------
 
-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Nick Winter
Sent: Tuesday, February 20, 2007 12:34 PM
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: RE: Graph axis labelling range

Yes, that gives a version of what I'm looking for.  I also want to be 
able to extend the range of the axis, yet also retain the ability to 
have the axis line only extend over a defined range.  For that, I think 
I need an approach along the lines of what I was doing, as made more 
elegant by Thomas Steichen.

(That is, doing something like yscale(ra(0 50)) then means that the 
nofextend draws the axis from 0 to 50.)

A question for Statacorp, perhaps: is there a way to extract 
programmatically the size of the default gap between the axis and the 
data area, from the current scheme?

--Nick

Scott Merryman wrote:
> How about this:
> 
> twoway scatter mpg price, ylabel(minmax,nogrid)  /// 
> 	xlabel(minmax) yscale(nofextend) xscale(nofextend)
> 
> 
> Scott
> 
> 
>> -----Original Message-----
>> From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-
>> statalist@hsphsun2.harvard.edu] On Behalf Of Nick Winter
>> Sent: Monday, February 19, 2007 2:02 PM
>> To: Stata List
>> Subject: st: Graph axis labelling range
>>
>> Hi,
>>
>> I am trying to create a "range-frame" around a scatterplot (see Tufte,
>> Visual Display of Quantitative Information, pp 130-131).  The basic idea
>> is that the axis line is drawn only for the range of the data.
>>
>> I've managed to create it (for the y-axis only in this example) as
>> follows:
>>
>> . sysuse auto
>>
>> . graph twoway scatter mpg price || ///
>> 	scatteri 12 -250 41 -250, c(l) msym(none) , ///
>> 	plotregion(margin(l 0  b 0)) yscale(noline) ///
>> 	ylab(12 41, nogrid) xscale(ra(-200 15000)) ///
>> 	legend(off) yscal(ra(10 45))
>>
>> But this seems like a pretty ugly way to go (and requires some ad-hoc
>> tinkering).
>>
>> I'd have thought that the yscale(noextend) option would get me where I
>> want to go, but this command:
>>
>> . graph twoway scatter mpg price , yscale(noextend)
>>
>> draws a y-axis that runs from about 15.5 to 26.2.  Not sure why that's
>> happening.
>>
>> Is this something someone has programmed, or on which someone has a
>> better approach?
>>
>> Thanks
>> Nick Winter
>>
>> --
>> --------------------------------------------------------------
>> Nicholas Winter                                 434.924.6994 t
>> Assistant Professor                             434.924.3359 f
>> Department of Politics                  nwinter@virginia.edu e
>> University of Virginia          faculty.virginia.edu/nwinter w
>> PO Box 400787, 100 Cabell Hall
>> Charlottesville, VA 22904
>>
>> *
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> 
> 
> *
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-- 
--------------------------------------------------------------
Nicholas Winter                                 434.924.6994 t
Assistant Professor                             434.924.3359 f
Department of Politics                  nwinter@virginia.edu e
University of Virginia          faculty.virginia.edu/nwinter w
PO Box 400787, 100 Cabell Hall
Charlottesville, VA 22904

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