Extract a virtual track on each array.track column

Extract a virtual track on each array.track column

gvtrack.array_extract(
  track,
  intervals,
  iterator,
  func = NULL,
  slice = NULL,
  ...
)

Arguments

track

array track

intervals

genomic scope for which the function is applied

iterator

track expression iterator. If 'NULL' iterator is determined implicitly based on track expressions.

func

see below

slice

a vector of column names or column indices or 'NULL'