Re: st: RE: Graph axis labelling range

[Nick Winter <nwinter@virginia.edu>]

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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--
--------------------------------------------------------------
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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