Don't have Tufte any more...
Is this near what you want?
sysuse auto
qui summ mpg
local ymn = r(min)
local ymx = r(max)
local yr = .05*(`ymx'-`ymn')
qui summ price
local xmn = r(min)
local xmx = r(max)
local xr = .05*(`xmx'-`xmn')
graph twoway scatter mpg price || ///
scatteri `ymn' `=`xmn'-`xr'' `ymx' `=`xmn'-`xr'', ///
c(l) clcol(black) msym(none) || ///
scatteri `=`ymn'-`yr'' `xmn' `=`ymn'-`yr'' `xmx', ///
c(l) clcol(black) msym(none) ///
, plotregion(margin(l 0 b 0) lcol(none))legend(off) ///
ylab(`ymn' `ymx', nogrid) yscale(ra(`ymn' `ymx')) yscale(noline) ///
xlab(`xmn' `xmx', nogrid) xscale(ra(`xmn' `xmx')) xscale(noline)
-----------------------------------
Thomas J. Steichen
[email protected]
-----------------------------------
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Nick Winter
Sent: Monday, February 19, 2007 3:02 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 [email protected] e
University of Virginia faculty.virginia.edu/nwinter w
PO Box 400787, 100 Cabell Hall
Charlottesville, VA 22904
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