[R-sig-Geo] maptools package rejects some polygon shapefiles?

Rick Reeves reeves at nceas.ucsb.edu
Wed May 11 19:46:00 CEST 2005


Using maptools in the Win XP environment, trying to
display an ESRI Shapefile (created with ArcMAP GIS ver 9)
outline map of North America. read.shape throws error:
Error in read.shape: Not a valid shape type. 

read.sahpe does read (and plot displays) a point shapefile 
created on the same platform. 

Any hints on determining the problem with 'not valid' shapefiles
in R? 

Rick R

Scientific Programmer / Quantitative Analyst
National Center for Ecological Analysis and Synthesis
University of California, Santa Barbara
805 892 2534
reeves at nceas.ucsb.edu

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