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st: Maximum number of options in graph line


From   "Davide Cantoni" <davide.cantoni@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: Maximum number of options in graph line
Date   Fri, 24 Aug 2007 14:12:32 +0200

Dear all,

I am trying to draw a line graph with several plots, 65 to be precise,
on Stata 9.2 for Mac. Is there any maximum number of options that one
can specify in terms of lcolor() or lwidth()? My impression is that
Stata accepts only options for up to 20 plots, because the following
code runs as it should:

twoway (line dtosynth_10000 year, lw(medthick) lc(black)) ///
(line dtosynth_65 dtosynth_69 dtosynth_90 dtosynth_144 /// 4
 dtosynth_177 dtosynth_197 dtosynth_253 dtosynth_300 /// 8
 dtosynth_303 dtosynth_321 dtosynth_422 dtosynth_477 /// 12
 dtosynth_483 dtosynth_535 dtosynth_559 dtosynth_574 /// 16
 dtosynth_599 dtosynth_618 dtosynth_627 dtosynth_2203 year /// 20
 , lw(vthin vthin vthin vthin vthin vthin vthin vthin vthin vthin  /// 10
 vthin vthin vthin vthin vthin vthin vthin vthin vthin vthin) /// 20
 lc(gs14 gs14 gs14 gs14 gs14 gs14 gs14 gs14 gs14 gs14 /// 10
 gs14 gs14 gs14 gs14 gs14 gs14 gs14 gs14 gs14 gs14)) /// 20
 , legend(off)

[Interpretation: I want one line graph to be bold and thick, and all
other 65 comparison units to be very thin and grey. The numbers after
/// just help me keeping track of the number of plots]

But as soon as I add one more y-variable to be plotted against year
(let alone 45 more) and add the corresponding values for lwidth and
lcolor, Stata does not obey my lcolor() and lwidth() options any more,
but makes all 21 lines in different colors and standard thickness.

Is there any way to avoid this, or to write the code above in a
smarter way? Thanks for your attention,

Davide
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