search for: readshapepoints

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 t...

...m attempting to write what MATLAB does as : [S,A]= shaperead() which returns an N by 1 geographic array structure S containing geometric information, and a paralell N by 1 attribute structure array, A containing feature attribute information. How can this be done with R code I tried using shp<-readShapePoints() but this doesnt return the same structure that I am looking for. Please Help. Thanks -- View this message in context: http://r.789695.n4.nabble.com/Reading-Shapefiles-tp4637262.html Sent from the R help mailing list archive at Nabble.com.

...'m stuck with it... Any thoughts on what I could be doing wrong will be very appreciated! See below the code: FOR ONE ANIMAL NAMED "Gael". IT WORKED PERFECTLY! ># Read a shapefile and convert it into a SpatialPointsDataFrame with its corresponding CRS >Gael_WGS84_WorldM <- readShapePoints("900_Gael_WGS84_WorldM", proj4string=CRS("+proj=merc +lon_0=0 +k=1 +x_0=0 +y_0=0 +ellps=WGS84 +datum=WGS84 +units=m +no_defs")) ># Remove all the columns except the name of the animal to use the kernelUD function. My data looks like this: > head(Gael_WGS8...

Hi, I have a problem that concerns combination of the package Maptools and Splancs I have 2 shapefiles that i want to manipulate (one of type point and one polygon).I import them in R using Maptools but then i can't estimate a quartic Kernel using Splancs. The package doesn't recognize the shapes (invalid points and poly argument).I don't know if this is an easy task but i have

Hello R Community, I have imported a dataset which contain X Y coordinates and would like to recreate a shape file after some data analysis. What i have done is to import some taxlot data and join them based on some criteria. I want to check to see how well the joining went by reviewing the results in GIS. A couple things. I cant seem to import a shape file correctly using the maptools