Plotting shapefiles in R

Dear Ester,

  This is a simple, yet effective, approach:

  library(maptools)
  myshp<-readShapePoly("path_to_your_shapefile")
  plot(myshp)

  Hope it helps,

  Thiago.

From: Ester Polaina Lacambra <e.polaina at gmail.com>
Subject: [R-sig-Geo] Plotting shapefiles in R
To: r-sig-geo at r-project.org
Date: Wednesday, 11 January, 2012, 7:20
Hello,

I am trying to perform several spatial analysis on R, based
on polygon
lists. My data come from ArcGIS, being in shape format. I
would like to
create a polygon list from this file. Apparently, R reads
properly the file
by using the function "read.shapefile", however when I try
the function
"plot" on this object, the program does not recognize which
are the X and Y
coordinates (which -by the way- are in decimal degree
units). Should I use
any specific sintaxis to indicate which columns are my
coordinates? or
maybe I have to project my coordinates somehow?

Thank you very much indeed,

-- 
Ester

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Plotting shapefiles in R

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