TrackDb-class: Track Databases

In rtracklayer: R interface to genome annotation files and the UCSC genome browser

Description

The TrackDb class is an abstraction around a database of tracks. Implementations include BrowserSession derivatives and QuickloadGenome. Here, a track is defined as an interval dataset.

Accessor Methods

Every implementation should support these methods:

length(x): number of tracks

names(x), trackNames(x): names of the tracks

mcols(x): merged metadata on the tracks

track(x, name), x$name, x[[name]]: get the track called name

track(x, name) <- value, x$name <- value, x[[name]] <- value: store the track value under name. Different implementations will support different types for value. Generally, an interval data structure like GenomicRanges.

Author(s)

Michael Lawrence

rtracklayer documentation built on Nov. 8, 2020, 6:50 p.m.