Anna,
You are right, -glcurve- uses it's own legend and does not seem to pay
attention to the legend you supply. Anyway, if you want to produce
'publication quality' pictures and need maximum control over your plots,
you will be better off splitting the estimation step and the plotting
step: (i) use -glcurve- and save the coordinates in new variables, then
(ii) use -twoway- to produce the final plot. For example,
sysuse auto, clear
rename price hhsub
drop if rep78==5
rename rep78 level2
// estimate and save coordinates in new variables
glcurve hhsub [aw=weight] if level2~=.&level2~=1, ///
lorenz by(level2) glvar(gl) split pvar(p) nogr
// plot results (notice the lpattern() option for changing the pattern -
your last question)
tw line gl* p , lpattern(solid dash "._") sort ///
|| function equality=x , lwidth(medthick) ///
legend(label(1 "Secondary") label(2 "VET") label(3 "Tertiary")
label(4 "Perfect equality")) ///
xtitle("Cumulative share of population") ///
ytitle("Cumulative share of benefits") ///
title("Equity in Educational Public Subsidies") ///
subtitle("Albania, 2005") ///
subtitle("Lorenz curve") ///
note("Source: LSMS 2005.")
Good luck,
Philippe
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