[R-sig-Geo] Home range overlaps calculated using BA are sometimes >1

Charlotte Regan C.E.Regan at sms.ed.ac.uk
Tue Feb 23 10:33:20 CET 2016

Hi there,

I'm using kerneloverlaphr from adehabitatHR to estimate the home range  
overlap between pairs of sheep. I really need an overlap measure that  
scales between 0 and 1 and therefore settled on BA, but I'm finding  
that in a few cases the overlap is greater than 1. It seems to be  
happening when an individual's UD is compared to itself.

My code is as below:


I noticed that there's been a post asking the same question before  
but an answer wasn't posted to the thread.

Apologies if it's just some failure in my coding/understanding, but  
thank you very much for any help you can provide!


Charlotte Regan

The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.

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