Description Usage Arguments Details Value Author(s) References Examples

Function to estimate 2 dimensional reference bandwidth for kernel density estimation

1 | ```
rhrHref(xy, rescale = "none")
``` |

`xy` |
data.frame with two columns: x and y coordinates |

`rescale` |
character, indicating if and if how data
are rescaled. |

Function to calcualte reference bandwidth. This
implementation is based on Worton (1989). If variances
differ greatly, it is advaisable to rescale the data
using `rescale="unitvar"`

. If the data is suspected
to multimodal other bandwidth estimation methods may be
more suitable. Seaman and Powell (1996) modified the
method slighty by calculating the reference bandwidth for
each dimension independently. The same result is obtained
if `rescale=TRUE`

. If rescaling is performed with
unit variance both methods will lead to the same result.

`vector`

of length two

Johannes Signer

Seaman, D. E., & Powell, R. A. (1996). An evaluation of the accuracy of kernel density estimators for home range analysis. _Ecology, 77(7)_, 2075-2085.

Worton, B. J. (1989). Kernel methods for estimating the utilization distribution in home-range studies. _Ecology, 70(1)_, 164-168.

1 2 |

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