[R] Set of standard city size symbols as known from atlases?

Greg Snow Greg.Snow at imail.org
Thu Nov 20 18:28:18 CET 2008

I don't know of an existing set of symbols for this, but if you can come up with a set or descriptions of what you want, then the my.symbols function in the TeachingDemos package can be used to place them on a plot.

Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Werner Wernersen
> Sent: Thursday, November 20, 2008 4:55 AM
> To: r-help at stat.math.ethz.ch
> Subject: [R] Set of standard city size symbols as known from atlases?
> Hi,
> I am wondering exists a standard set of symbols to mark cities of
> different size classes on a map for R yet?
> In a standard atlas there are symbols like small filled circles, small
> filled circles with an outer circle, same with small squares, etc.
> which mark capitals and different size classes of cities.
> I know I can get different symbols with the pch option in plot but the
> question aims at if such more standard symbols of atlases are
> available.
> Many thanks,
>   Werner
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