findNeighborFeature: Find features on the (upstream or downstream) constitutive...
In fchen365/surf: Statistical Utility for RBP (RNA binding protein) Functions

Locate the feature on the (upstream or downstream) constitutive exons and extract the genomic bins, given some body features of AS events. This is a helper function to getFeature().

findNeighborFeature(
  plas,
  body,
  type = c("lead", "lag"),
  depth.exon = 100,
  constitutive = TRUE
)

`plas`	one isoform element in `isoPLas`.
`body`	`list`, $id_tx$event_id = body bins indices.
`type`	`character`, either "lead" for upstream, or "lag" for downstream.
`depth.exon`	`integer`, extended depth into exon.
`constitutive`	`logical`, whether to use consecutive or adjacent neighbor exon. The default is `TRUE`.