[R] barplot and map overlay

[Héctor Villalobos]

Thank you Greg,

It works!



On 13 Jun 2007 at 8:27, Greg Snow wrote:

> Look at the subplot function in the TeachingDemos package.
> 
> -----Original Message-----
> From: "Héctor Villalobos" <hvillalo at ipn.mx>
> To: "r-help at stat.math.ethz.ch" <r-help at stat.math.ethz.ch>
> Sent: 6/11/07 5:48 PM
> Subject: [R] barplot and map overlay
> 
> Hi,
> 
> I wonder if it is possible with the graphics package to overlay one or
> several plots (barplots, for example) over a map. Data for the map is
> in a data frame with the latitude and longitude coordinates, and then:
> 
> > plot(map$long, map$lat, type ="l")
> 
> produces the map. I want to put each barplot in specific locations on
> the map, namely at the center of "statistical squares".
> 
> I´ve seen an example in Paul Murrell´s "R Graphics" book that seems
> appropriate (grid package), but a bit complicated.
> 
> Thanks a lot for any advice.
> 
> Héctor
-- 
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