Hello, The 'trip' package provides extensions to the 'sp' spatial classes for animal track data.
Trip objects are created from SpatialPointsDataFrame objects by specifying the columns containing ID and date-time data. Argos formats can be read directly, and there are functions for basic speed filtering and spatial gridding of time spent. Tight integration with 'sp' means that projections and general I/O can be handled using 'rgdal'. (This really is excellent and so I thank the developers of these and supporting packages). Trip is intended for use with location data that are irregularly spaced in time - this contrasts with the rationale behind the traj class in 'adehabitat'. Primarily it has been developed with marine animal data in mind, but the validation of trip classes used should general for many applications. There is a short vignette available from here - it's not integrated into the CRAN-available package yet. http://staff.acecrc.org.au/~mdsumner/Rutas/trip.pdf Cheers, Michael Sumner _______________________________________________ R-packages mailing list R-packages@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-packages ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
