Mathieu Basille
2020-Nov-16 02:09 UTC
[R-pkgs] Package 'sftrack': Modern classes for tracking and movement data
Dear R users and developers, The 'sftrack' package is finally on CRAN! https://cran.r-project.org/package=sftrack 'sftrack' provides modern classes for tracking and movement data, relying on 'sf' spatial infrastructure. Tracking data are made of tracks, i.e. series of locations with at least 2-dimensional spatial coordinates (x,y), a time index (t), and individual identification (id) of the object being monitored; movement data are made of trajectories, i.e. the line representation of the path, composed by steps (the straight-line segments connecting successive locations). 'sftrack' is designed to handle movement of both living organisms and inanimate objects. A dedicated website with extensive vignettes and documentation can be found at: https://mablab.org/sftrack/ The development and design of the 'sftrack' package follow three simple principles: * Minimal and focused: this is basically the Unix philosophy. Do a simple thing, and do it well. The scope of the package is limited (see above), with as few dependencies as possible; * User-friendly: 'sftrack' is designed to be as easy to use as familiar R structures like data.frames and 'sf' objects. 'sftrack' objects are tidy, and follow the idea that rows are records (locations) and columns are variable (following the semantics of tracking and movement data); * Flexible and extensible: 'sftrack' is meant first for users to use on their data, but also directly designed to address other developers? needs for their own tracking packages. If you are a developer of a tracking package, and you are interested in the classes provided by 'sftrack', please do not hesitate to contact us (for instance at https://github.com/mablab/sftrack/issues). You can directly install the version available on CRAN ('install.packages("sftrack")'), but note that the development version currently goes a step (!) forward by implementing a true representation of time steps (t1?t2), which makes each step completely defined by itself (x,y,t1?x,y,t2) and independent from other steps (each step can be handled on its own). See the details of the implementation in the documentation of the dev branch: https://mablab.org/sftrack/dev/articles/sftrack6_time.html Best, Mathieu Basille, for the 'sftrack' team. -- Mathieu Basille basille at ufl.edu | https://mablab.org/ +1 954-577-6314 | University of Florida FLREC ? Le tout est de tout dire, et je manque de mots Et je manque de temps, et je manque d'audace. ? ? Paul ?luard