powered by
Test whether a variable contains a track table as produced by track_df, track_tbl, or track_dt.
track_df
track_tbl
track_dt
is_track(x)
A logical indicating whether the variable contains a track table (TRUE) or not (FALSE).
TRUE
FALSE
An object to test.
Simon Garnier, garnier@njit.edu
track_df, track_tbl, track_dt
data(short_tracks) is_track(short_tracks)
Run the code above in your browser using DataLab