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Re: st: [Graphics] how to set the length of an axis?


From   Ulrich Kohler <kohler@wzb.eu>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: [Graphics] how to set the length of an axis?
Date   Fri, 20 Mar 2009 11:10:59 +0100

Am Freitag, den 20.03.2009, 10:47 +0100 schrieb Martin Weiss:
> <>
> 
> Ulrich,  which error messages did you receive? Antoine`s code runs for me when I add comments at the end of the lines belonging to the -twoway- commands...

I don't care about the reasons for the errors, as I don't really wanted
to reproduce Antoine's solution. Instead I wanted to point Antoine to a
solution which makes looping across graphs unnecessary. My first
sentence was meant as an excuse that my example graph might look a bit
different to Antoine's. 

Besides that, yes, I think the errors could have been caused by line
breaks. 

Uli

> 
> 
> *******
> /*--------------------------------------------*/
> clear
> set scheme s2mono
> use nlswork.dta, clear
> g wage=exp(ln_wage)
> su wage, de
> drop if wage>r(p99)
> egen t=group(year)
> g ti=t+runiform()
> g ti2=ti^2
> g ti3=ti^3
> qreg wage ti ti2 ti3
> predict med
> qreg wage ti ti2 ti3 , quantile(.95)
> predict q95
> qreg wage ti ti2 ti3 , quantile(.05)
> predict q5
> 
> twoway (hist wage if t==1 , fcolor(gs14) plotr(m(zero)) ///
> graphregion(margin(zero) color(white)) xlabel(0 "1") xtitle("") ///
> ylabel(0(5)20, grid gmin gmax)  horiz) (line med q95 q5 ti if t==1, sort ///
> xaxis(2) yaxis(2) ylabel(0(5)20, axis(2)) lcolor(black black black) ///
> lwidth(thick thick thick) lpattern(solid solid solid) xscale(off ///
> axis(2)) yscale(off axis(2)) plotr(m(zero))) , legend(off)  saving(a, ///
> replace)
> local list "a.gph"
> 
> local t=2
> while `t'<=15 {
>      twoway (hist wage if t==`t', fcolor(gs14) plotr(m(zero)) ///
> graphregion(margin(zero) color(white)) xlabel(0 "`t'") xtitle("") ///
> yscale(off)  xtitle("") ylabel(0(5)20 , grid gmin gmax)  horiz) (line ///
> med q95 q5 ti if t==`t', sort xaxis(2) yaxis(2) ylabel(0(5)20, axis(2)) ///
> lcolor(black black black) lwidth(thick thick thick) lpattern(solid solid ///
> solid) xscale(off axis(2)) yscale(off axis(2)) ) , legend(off) ///
> saving(a`t', replace)
> local list "`list' a`t'.gph"
> local t=`t'+1
> }
> graph combine `list', imargin(0 0 0 0) row(1) graphregion(color(white)) ///
> note(t, pos(6))
> /*--------------------------------------------------*/
> *********
> 
> HTH
> Martin
> -------- Original-Nachricht --------
> > Datum: Fri, 20 Mar 2009 10:17:18 +0100
> > Von: Ulrich Kohler <kohler@wzb.eu>
> > An: statalist@hsphsun2.harvard.edu
> > Betreff: Re: st: [Graphics] how to set the length of an axis?
> 
> > Antoine,
> > 
> > I got some error messages from your solution, but this one points you in
> > a different direction and it arguably simpler. It calculates the numbers
> > for the histogram by hand and uses -tw rbar- instead of -tw histogram-:
> > 
> > ------------------------------------------------------cut here---
> > clear
> > set scheme s2mono
> > webuse nlswork.dta, clear
> > g wage=exp(ln_wage)
> > su wage, de
> > drop if wage>r(p99)
> > egen t=group(year)
> > g ti=t+runiform()
> > g ti2=ti^2
> > g ti3=ti^3
> > qreg wage ti ti2 ti3
> > predict med
> > qreg wage ti ti2 ti3 , quantile(.95)
> > predict q95
> > qreg wage ti ti2 ti3 , quantile(.05)
> > predict q5
> > 
> > sum wage, meanonly
> > gen wageclass = autocode(wage,20,r(min),r(max))
> > by t wageclass, sort: gen wageperc = _N/r(N)
> > 
> > // rescale wageperc
> > sum wageperc, meanonly
> > replace wageperc = wageperc/r(max) * .80
> > 
> > gen lower = t
> > gen upper = t + wageperc
> > 
> > levelsof wageclass, local(K)
> > local width  = (`:word 2 of `K'' - `:word 1 of `K'')*.95
> > twoway                                         ///
> >   || rbar lower upper wageclass,               /// 
> >   color(gs12) barwidth(`width') horizontal     ///
> >   || line med q95 q5 ti, sort lcolor(black..)  
> > 
> > -----------------------------------------------------------------
> > 
> > 
> > Am Freitag, den 20.03.2009, 09:07 +0100 schrieb Antoine Terracol:
> > > Dear _all,
> > > 
> > > I was asked if I could reproduced a graphic like 
> > > http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=109
> > > in Stata.
> > > 
> > > Using nlswork.dta, I was able to produce the graph whose code is pasted 
> > > below.
> > > 
> > > As you can see, the years are not evenly spaced on the x-axis. In 
> > > particular, the part between "1" and "2" is much smaller than the rest.
> > > 
> > > I understand that, in fact, the total width of the sub graphs are all 
> > > equal, and that the visual difference is due to the presence of the y 
> > > axis and its legend in the first sub-graph.
> > > 
> > > Is there a way to set the length of the axis in the first sub graph, or,
> > > alternatively, to produce a graph with just the y-axis in such a way 
> > > that it would look nice?
> > > 
> > > Best,
> > > Antoine
> > > 
> > > /*--------------------------------------------*/
> > > clear
> > > set scheme s2mono
> > > webuse nlswork.dta, clear
> > > g wage=exp(ln_wage)
> > > su wage, de
> > > drop if wage>r(p99)
> > > egen t=group(year)
> > > g ti=t+runiform()
> > > g ti2=ti^2
> > > g ti3=ti^3
> > > qreg wage ti ti2 ti3
> > > predict med
> > > qreg wage ti ti2 ti3 , quantile(.95)
> > > predict q95
> > > qreg wage ti ti2 ti3 , quantile(.05)
> > > predict q5
> > > 
> > > twoway (hist wage if t==1 , fcolor(gs14) plotr(m(zero)) 
> > > graphregion(margin(zero) color(white)) xlabel(0 "1") xtitle("") 
> > > ylabel(0(5)20, grid gmin gmax)  horiz) (line med q95 q5 ti if t==1, sort
> > > xaxis(2) yaxis(2) ylabel(0(5)20, axis(2)) lcolor(black black black) 
> > > lwidth(thick thick thick) lpattern(solid solid solid) xscale(off 
> > > axis(2)) yscale(off axis(2)) plotr(m(zero))) , legend(off)  saving(a, 
> > > replace)
> > > local list "a.gph"
> > > 
> > > local t=2
> > > while `t'<=15 {
> > >      twoway (hist wage if t==`t', fcolor(gs14) plotr(m(zero)) 
> > > graphregion(margin(zero) color(white)) xlabel(0 "`t'") xtitle("") 
> > > yscale(off)  xtitle("") ylabel(0(5)20 , grid gmin gmax)  horiz) (line 
> > > med q95 q5 ti if t==`t', sort xaxis(2) yaxis(2) ylabel(0(5)20, axis(2)) 
> > > lcolor(black black black) lwidth(thick thick thick) lpattern(solid solid
> > > solid) xscale(off axis(2)) yscale(off axis(2)) ) , legend(off) 
> > > saving(a`t', replace)
> > > 	local list "`list' a`t'.gph"
> > > 	local t=`t'+1
> > > }
> > > graph combine `list', imargin(0 0 0 0) row(1) graphregion(color(white)) 
> > > note(t, pos(6))
> > > /*--------------------------------------------------*/
> > > 
> > > *
> > > *   For searches and help try:
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> > > *   http://www.stata.com/support/statalist/faq
> > > *   http://www.ats.ucla.edu/stat/stata/
> > -- 
> > kohler@wzb.eu
> > 030 25491-361
> > 
> > *
> > *   For searches and help try:
> > *   http://www.stata.com/help.cgi?search
> > *   http://www.stata.com/support/statalist/faq
> > *   http://www.ats.ucla.edu/stat/stata/
> 
-- 
kohler@wzb.eu
030 25491-361

*
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