Discover dtrack (or compatible) landmark/track file pairs in a directory

Scans dir for paired files matching landmark_suffix and track_suffix and returns a tibble of basenames and paths.

Usage

import_tracks(dir, landmark_suffix = NULL, track_suffix = NULL)

Arguments

dir

Directory to scan. Defaults to the current working directory.

landmark_suffix

Suffix identifying landmark files. Default "_point01.txt".

track_suffix

Suffix identifying trajectory files. Default "_point02.txt".

Value

A tibble with columns basename, landmark, and track.

Details

The default suffixes match the export naming convention used by dtrack (https://bitbucket.org/jochensmolka/dtrack). In the bundled millipede example data, _point01 files contain two landmark rows per trial (arena centre and stimulus edge on the arena wall) and _point02 files contain the per-frame animal trajectory. This two-file role split is specific to that experiment and is not a general dtrack convention. Use [dtrack_read()] to read an individual trajectory file.