[R-sig-Geo] Guidance on adehabitat usage

Anthony Fischbach afischbach at usgs.gov
Wed Feb 26 22:22:37 CET 2014


Jefferson, 
With your missing relocation data you are now faced with broad decisions
about how to work with these trajectories, but you are not alone with this
problem -- most projects that track animals suffer this problem.  I would
start by asking what biological questions you are trying to answer.  From
there you may consider your options.  As you seek to generate a regular
trjecotries, you may consider the use of a correlated random walk algorithms
(http://cran.r-project.org/web/packages/crawl), which will require
considerable thought on how to tune these algorithms to the unquique
problems of your tracking dataset.





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Tony Fischbach, Wildlife Biologist
Walrus Research Program
Alaska Science Center
U.S. Geological Survey
4210 University Drive
Anchorage, AK 99508-4650

AFischbach at usgs.gov
http://alaska.usgs.gov/science/biology/walrus
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