st: graph symbol proportional to N

["S.E.Korupp" <sylvia.korupp@uni-erfurt.de>]

a few years ago I saw a Stata graph where the symbols (triangles) in the
(twoway) graph were sized proportional to the underlying N of that
particular point of the function. I looked everywhere in 'Graphics' but
I just can't seem find the according command. Can someone give me a
hint? By the way I'm using Stata6.

thanks,
Sylvia

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