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From | Scott Merryman <scott.merryman@gmail.com> |
To | statalist@hsphsun2.harvard.edu |
Subject | Re: st: graph rarea optical illusion or coding error? |
Date | Wed, 11 May 2011 08:04:47 -0500 |
The scheme as a default intensity of 80% or if you open on the graph in the Editor you can see that the fill intensity is 80%. It appears adding -fin(100)- seems to help. Regarding the -lcolor(none)- removing the area completely - if there is no outline then there is no interior defined by the outline (see http://www.stata.com/statalist/archive/2003-05/msg00685.html). Scott On Wed, May 11, 2011 at 7:02 AM, Ulrich Kohler <kohler@wzb.eu> wrote: > Listers, > > I try to create a figure of shaded areas for 5%, 10%, 15% ... 95% > confidence intervals. The resulting areas seem to have a lines around > the areas that are darker than both neighbouring areas. Is it possible > to get rid of this, or is this just an optical illusion? > > Here is a minimal example of my code. Note that I tried various settings > for -lwidht()- , -lcolor()-, -fintensity()-. Most surprisingly > -lcolor(none)- removes areas completely, btw. > > -----------------------------------------------------illusion.do > sysuse auto, clear > > collapse (mean) mean=mpg (semean) se=mpg, by(rep78) > > local pen 15 > forv alpha = .05(.06).95 { > gen ub`pen' = mean + invnormal(1-`alpha'/2)*se > di "gen ub`pen' = mean + `=invnormal(1-`alpha'/2)'*se" > gen lb`pen' = mean - invnormal(1-`alpha'/2)*se > local pen = `pen'-1 > } > > forv i = 15(-1)1 { > local rarea `rarea' /// > || rarea ub`i' lb`i' rep78, /// > lcolor(gs`i') fcolor(gs`i') lwidth(none) sort > } > > graph twoway `rarea' || , legend(off) > > exit > ------------------------------------------------------------------- > * * 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/