splitIn3Tx: Create binned coverage of transcripts, split into the 3...

View source: R/coverage_helpers.R

splitIn3TxR Documentation

Create binned coverage of transcripts, split into the 3 parts.

Description

The 3 parts of transcripts are the leaders, the cds' and trailers. Per transcript part, bin them all to windowSize (default 100), and make a data.table, rows are positions, useful for plotting with ORFik and ggplot2.

Usage

splitIn3Tx(
  leaders,
  cds,
  trailers,
  reads,
  windowSize = 100,
  fraction = "1",
  weight = "score",
  is.sorted = FALSE,
  drop.zero.dt = FALSE,
  BPPARAM = BiocParallel::SerialParam()
)

Arguments

leaders

a GRangesList of leaders (5' UTRs)

cds

a GRangesList of coding sequences

trailers

a GRangesList of trailers (3' UTRs)

reads

GRanges or GAlignment of reads

windowSize

an integer (100), size of windows (columns). All genes with region smaller than this size are filter out for metacoverage.

fraction

a character (1), info on reads (which read length, or which type (RNA seq)) (row names)

weight

(default: 'score'), if defined a character name of valid meta column in subject. GRanges("chr1", 1, "+", score = 5), would mean score column tells that this alignment region was found 5 times. Formats which loads a score column like this: Bigwig, wig, ORFik ofst, collapsed bam, bedoc and .bedo. As do CAGEr CAGE files and many other package formats. You can also assign a score column manually.

is.sorted

logical (FALSE), is grl sorted. That is + strand groups in increasing ranges (1,2,3), and - strand groups in decreasing ranges (3,2,1)

drop.zero.dt

logical FALSE, if TRUE and as.data.table is TRUE, remove all 0 count positions. This greatly speeds up and most importantly, greatly reduces memory usage. Will not change any plots, unless 0 positions are used in some sense. (mean, median, zscore coverage will only scale differently)

BPPARAM

how many cores/threads to use? default: bpparam()

Value

a data.table with columns position, score


JokingHero/ORFik documentation built on Dec. 21, 2024, 12:01 a.m.