[R-sig-Geo] Estimation of utilization distribution and home range within a polygon

Manuel Spínola mspinola10 at gmail.com
Mon Aug 15 17:07:34 CEST 2016


Dear list members,

Is there a way to estimate utilization distribution and home range area
within a polygon.  I am working with spatial location on a fish in a
wetland but the utilization distribution and the home range cannot go
outside the water boundary.

I tried using a spatial polygon as spatial line and specify this in the
boundary argument of the kernelUD function of the adehabitatHR package but
I got an error:

> ud = kernelUD(dfs_in[,2], h="href", grid = 100, boundary = riol)

Error in .boundaryk(SpatialPoints(x, proj4string =
CRS(as.character(pfs1))),  :
  non convenient boundary: turning angles > pi/2

"riol" is the spatial polygon coerced to spatial line

Thank you very much in advance

Manuel

-- 
*Manuel Spínola, Ph.D.*
Instituto Internacional en Conservación y Manejo de Vida Silvestre
Universidad Nacional
Apartado 1350-3000
Heredia
COSTA RICA
mspinola at una.cr <mspinola at una.ac.cr>
mspinola10 at gmail.com
Teléfono: (506) 8706 - 4662
Personal website: Lobito de río <https://sites.google.com/site/lobitoderio/>
Institutional website: ICOMVIS <http://www.icomvis.una.ac.cr/>

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