[tlocoh-info] Function lxy.gridanv.add

Andy Lyons lyons.andy at gmail.com
Sat Feb 11 05:42:32 CET 2017

Hi Horst,

Thanks again for bringing this error message to our attention and 
working with me to recreate and diagnose the problem. For the benefit of 
everyone else, we tracked the bug down to a function name change in the 
sp package, which has now been updated in the current version of tlocoh. 
To update your package, you can run:

update.packages(oldPkgs="tlocoh", repos="http://R-Forge.R-project.org")


On 2/1/2017 6:05 AM, Horst Reinecke wrote:
> Hi all,
> Iäm working with with 3.3.2 and tlocoh 1.40 and 14.04.1-Ubuntu. Trying 
> to add an  ancillary variable to a lxy-object I get following error: 
> Error in (function (classes, fdef, mtable)  :
>   unable to find an inherited method for function ‘overlay’ for 
> signature ‘"SpatialGridDataFrame", "SpatialPointsDataFrame"’
> My command: test_anc <- lxy.gridanv.add(c15792_1.lxy[[2]], band = 1, 
> fn = 'tiffs/class_seg.tif', anv.name = 'use_class')
> c15792_1.lxy[[2]] is of class locohlxy and 'tiffs/class_seg.tif' is a 
> geotiff readable by rGDAL.
> Are there any suggestions?
> Best,
> Horst

*T-LoCoH*: A hull-based method for home range construction and 
spatiotemporal analysis of movement data.
Lyons, A., Turner, W.C., and WM Getz. 2013. Home Range Plus: A 
Space-Time Characterization of Movement Over Real Landscapes. BMC 
Movement Ecology 1:2 <http://www.movementecologyjournal.com/content/1/1/2>.

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