get_trackdata if the
resultType parameter is set to "emuRtrackdata" or the result of
an explicit call to create_emuRtrackdata. Compared to
the trackdata object it is a sub-class of a data.table
/ data.frame which is meant to ease integration with other
packages for further processing. It can be viewed as an amalgamation of
a emuRsegs and a trackdata object as it
contains the information stored in both objects.get_trackdata, create_emuRtrackdatatrackdata