Dear all, I have just uploaded to CRAN the version 1.4 of the package 'adehabitat'. Significant changes are listed below: - The eigenanalysis of selection ratios (Calenge and Dufour, 2006, Ecology) can now be performed using the function eisera(). It can be used for the analysis of habitat selection when habitat can be considered to consist of several habitat types (e.g. vegetation types). - A new class, the class "ltraj", is now available for the analysis of trajectories of animals (e.g. for the analysis of data collected using GPS collars). This class automatically computes the turning angles between successive moves, the absolute angles for each move, the speeds and the net squared displacement for each relocation. This class is to be prefered to the class "traj". The class "traj" is now deprecated. Note that the data set "puechcirc" is now of the class ltraj. - The functions making the interface with the package "sp" have been updated: 'area2spol' converts an object of class 'area' into an object of class 'SpatialPolygons'. 'spol2area' converts an object of class 'SpatialPolygons' or 'SpatialPolygonsDataFrame' into an object of class 'area'. 'attpol2area' gets the data attribute of an object of class 'SpatialPolygonsDataFrame' and stores is into a data frame. 'traj2spdf' converts an object of class 'traj' into an object of class 'SpatialPointsDataFrame'. 'traj2sldf' converts an object of class 'traj' into an object of class 'SpatialLinesDataFrame'. - The function enfa() has been modified: The old components "co" and "l1" have been removed from objects of class "enfa", as they did not rely on solid mathematical theory. The old component "c1" is now named "co", and corresponds to the scores of habitat variables in the enfa (the squared norm of this vector is equal to 1 for the identity metric). As previously, the component "li" stores the scores of the resource units in the ENFA. - The function df2kasc now accept objects of class "kasc" with one column. - That's all, thanks for reading ! Questions, comments and suggestions are greatly appreciated. Happy testing, Cl??ment Calenge -- Cl??ment CALENGE LBBE - UMR CNRS 5558 - Universit?? Claude Bernard Lyon 1 - FRANCE tel. (+33) 04.72.43.27.57 fax. (+33) 04.72.43.13.88 _______________________________________________ R-packages mailing list R-packages at stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-packages