TrackLine-class {rtracklayer} | R Documentation

## Class "TrackLine"

### Description

An object representing a "track line" in the UCSC format. There are two concrete types of track lines: `BasicTrackLine` (used for most types of tracks) and `GraphTrackLine` (used for graphical tracks). This class only declares the common elements between the two.

### Objects from the Class

Objects can be created by calls of the form `new("TrackLine", ...)` or parsed from a character vector track line with `as(text, "TrackLine")`. But note that UCSC only understands one of the subclasses mentioned above.

### Slots

`name`:

  Object of class `"character"` specifying the name of the track.

`description`:

  Object of class `"character"` describing the track.

`visibility`:

  Object of class `"character"` indicating the default visible mode of the track, see `UCSCTrackModes`.

`color`:

  Object of class `"integer"` representing the track color (as from `col2rgb`).

`priority`:

  Object of class `"numeric"` specifying the rank of this track.

### Methods

as(object, "character")

  Export line to its string representation.

### Author(s)

Michael Lawrence

### References

http://genome.ucsc.edu/goldenPath/help/customTrack.html#TRACK for the official documentation.

### See Also

`BasicTrackLine` (used for most types of tracks) and `GraphTrackLine` (used for Wiggle/bedGraph tracks).

[Package rtracklayer version 1.52.1 Index]