[EMAIL PROTECTED] schreef: > I am having difficulty loading a points shapefile (1600 records) I generated > from ArcGIS as a PointsSpatialDataFrame using the maptools readShapePoints > function. > > library(maptools) > surveypts <- readShapePoints(system.file("C:/temp/survey.shp", > package="maptools")[1] > Error in getinfo.shape(filen) : Error opening SHP file > > I've tried numerous re-exports and renames of the dataset, to no avail. I've > also tried placing the shapefile in the library's shapefile folder, with the > example dataset (see example below). > > x <- readShapePoints(system.file("shapes/survey.shp", package="maptools")[1] > > No luck there either. I'm quite new to R, but I can follow a manual and > google well enough. However, I haven't seen anything to help me. The example > point datasets load fine. I figure that I'm missing on some familiarity with > R and that I don't know the tricks yet. Any help? > > Thanks in advance. > > Gericke Cook > USDA-APHIS-PPQ > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > Hi Gericke,
Why do you use system.file? Probably it will look for survey.shp in the maptools package. Try instead: surveypts <- readShapePoints("C:/temp/survey.shp") For these kind of geographic questions, the r-sig-geo mailing list is maybe a better way to get good answers. cheers and hth, Paul -- Drs. Paul Hiemstra Department of Physical Geography Faculty of Geosciences University of Utrecht Heidelberglaan 2 P.O. Box 80.115 3508 TC Utrecht Phone: +31302535773 Fax: +31302531145 http://intamap.geo.uu.nl/~paul ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.