Hello, I have collected GPS data on individuals (humans) at one second intervals for approximately seven days. The file is read into R and the coordinates are converted from decimal degrees to UTM. I then calculate two measures: 1. Minimum convex polygon (using the ASPACE packge) 2. Kernel density estimate (using SPLANCS, kernel2d function)
The first measure, MCP, can be output to a shapefile using makeshapes in the ASPACE package for further analysis in a GIS package. I would like to be able to do the same with the KDE, either as a raster (grid if using ArcGIS), or would also be happy with polyline contours if possible in .shp format. Why? Because I would like to extract information from other layers in the GIS that correspond to the boundaries and intensities of the KDE surface. Is this currently possible from within R? If so, can anyone share with me the process or code to achieve the conversion? Thanks in advance for your help. I can send my full R code if required. Daniel Rainham Dalhousie University _______________________________________________ R-sig-Geo mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-geo
