Description Usage Arguments Details Value References
Function to estimate home ranges with local convex hulls.
1 2 |
xy |
Instance of |
type |
Scalar character, one of "k", "r", "a". Method to determine the tuning parameter |
n |
Numeric scalar, value of the tuning parameter. |
levels |
Numeric |
minPts |
Numeric scalar, the minimum number of neighbors required. |
autoN |
Boolean scalar, whether or not |
Three different methods to determine the neighboring points are available:
"k"uses k-nearest neighbors
"r"uses all neighbors within a radius r
"a"uses all neighbors that can be reached within a distance a. The distance to all points is calculated and then cummulatively summed starting from the smallest until a
is reached.
.
autoN
attempts to estimate values for the tuning parameters k,r,a.
If type
is "k"
then "n"
is the square root of all locations.
If type
is "a"
then "n"
is the maximum distance between any two relocations.
If type
is "r"
then "n"
is 5
Object of class RhrLoCoH
Getz, W. M., & Wilmers, C. C. (2004). A local nearest-neighbor convex-hull construction of home ranges and utilization distributions. _Ecography_, 27(4), 489-505.
Getz, W. M., Fortmann-Roe, S., Cross, P. C., Lyons, A. J., Ryan, S. J., & Wilmers, C. C. (2007). LoCoH: nonparameteric kernel methods for constructing home ranges and utilization distributions. _PloS one_, 2(2), e207.
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