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RE: st: how to draw several kdensity curves in one graph

From   "Nick Cox" <>
To   <>
Subject   RE: st: how to draw several kdensity curves in one graph
Date   Wed, 3 Mar 2010 12:56:51 -0000

Only -plot()- works in Stata 8. -plot()- and -addplot()- both work in Stata 9 up, but -addplot()- is typically undocumented. 


Christopher Hajzler

I should have mentioned one more thing: I use an older version of
Stata (Stata 8), but when I was researching commands, some
instructions mentioned "addplot" instead of just plot, but this did
not work for me.  Possibly this is the command you would want to use
for more recent versions of Stata, but I am not sure.

On Wed, Mar 3, 2010 at 10:49 AM, Christopher Hajzler <> wrote:
> Coincidentally, I was just wrestling with the same thing myself
> yesterday.  Here is the command I used:
> kdensity var if (year==1999), plot(kdensity var if
> (year==1989)||kdensity var if (year==1979)) legend(ring(0) pos(2)
> label(1 "1999") label(2 "1989") label(3 "1979") )

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