[AniMov] problem with getverticeshr at >85%
a.ghisla at gmail.com
Wed Jul 28 08:35:01 CEST 2010
On Tue, 2010-07-27 at 15:27 -0400, Corrie Curtice wrote:
> I am trying to export the home range for a single individual animal.
> I'm getting the error "Error in re[[i]] : subscript out of bounds" --
> I looked on the archive and found my own posting of this question for
> the 100% isopleth. :) So now I'm wondering, why does the error occur
> at lower isopleth levels? Ideally I would like the 95% KHRE to show
> the "home range" of each animal, and this works with all other
> individuals. The answer to my last posting noted that the isopleth
> went beyond the grid limits. I'm not passing in an underlying grid.
> Here's my call:
> ud <- kernelUD(xy, grid=100, h="href")
> kvtmp <- getverticeshr(ud, lev = 95)
> Levels up to 85 work fine. Is there anything I can do to fix this, if
> not what is the proper way to report the result for this animal? If
> you need more code or output I can send.
it sounds like the issue reported here:
does your dataset show anisotropy? The one attached to the ticket is a
narrow cloud of points along a horizontal line. The default grid created
by kernelUD is likely not able to encompass the whole UD. If the case, I
would try creating a wider grid and providing it to kernelUD.
hope this helps!
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