[R-sig-Geo] Data point coordinates from kernel home range estimation

despina_tg despina.tg at gmail.com
Mon Feb 27 11:29:46 CET 2012


Hello, 

I'm very new in working on R and maybe that's a simple thing I'm trying to
do, but I am really stuck. 

I have  a data point set of animal tracking coordinates and I have
implemented a kernel utilization distribution analysis in order to find the
home range for 95% of the relocation data. I have used the ud.kde() and
hr.kde() functions of the "wild1" package, so I have a number of polygons
(peaks of kernel density) as an object of the following class: 

> class(homerange) 
[1] "Polygons" 
attr(,"package") 
[1] "sp" 

My question is how can I extract the point coordinates within each
polygon-circle? Because, the home range coordinates are arbitrary points
contouring the real data points. 

Hope it's clear, 

Despina

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