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Get meta-data of a track
get_track_data(field, track_index = current_track_index())
A numeric value of the corresponding field.
Name, see Details section.
Which track?
There are following fields that can be retrieved for a given track:
ymin Lower boundary of the data.
ymax Upper boundary of the data.
ycenter (ymin + ymax)/2
(ymin + ymax)/2
ylim c(ylim, ymax)
c(ylim, ymax)
yrange ymax - ymin
ymax - ymin
height Height of the track, measured as the fraction of the distance between two neighbouring circles.
It is more suggested to directly use TRACK_META to retrieve meta data for the current track.
TRACK_META
# There is no example NULL
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