indelCounts: Count the number of reads containing an insertion or deletion

In CrispRVariants: Tools for counting and visualising mutations in a target location

Description

Counts the number of reads containing a deletion or insertion (indel) of any size in a set of aligned reads. For countDeletions and countInsertions Reads may be filtered according to whether they contain more than one indel of the same or different types.

Usage

countDeletions(alns, ...)

## S4 method for signature 'GAlignments'
countDeletions(alns, ..., multi.del = FALSE,
  del.and.ins = FALSE, del.ops = c("D"))

countInsertions(alns, ...)

## S4 method for signature 'GAlignments'
countInsertions(alns, ..., ins.and.del = FALSE,
  multi.ins = FALSE, del.ops = c("D"))

countIndels(alns)

## S4 method for signature 'GAlignments'
countIndels(alns)

indelPercent(alns)

## S4 method for signature 'GAlignments'
indelPercent(alns)

Arguments

alns	The aligned reads
...	extra arguments
multi.del	If TRUE, returns the exact number of deletions, i.e., if one read contains 2 deletions, it contributes 2 to the total count (default: FALSE)
del.and.ins	If TRUE, counts deletions regardless of whether reads also contain insertions. If FALSE, counts reads that contain deletions but not insertions (default: FALSE)
del.ops	Cigar operations counted as deletions. Default: c("D")
ins.and.del	If TRUE, counts insertions regardless of whether reads also contain deletions If FALSE, counts reads that contain insertions but not deletions (default: FALSE)
multi.ins	If TRUE, returns the exact number of insertions, i.e., if one read contains 2 insertions, it contributes 2 to the total count (default: FALSE)

Value

countDeletions: The number of reads containing a deletion (integer)

countInsertions: The number of reads containing an insertion (integer)

countIndels: The number of reads containing at least one insertion

indelPercent: The percentage of reads containing an insertion or deletion (numeric)

Author(s)

Helen Lindsay

Examples

bam_fname <- system.file("extdata", "gol_F1_clutch_2_embryo_4_s.bam",
                         package = "CrispRVariants")
bam <- GenomicAlignments::readGAlignments(bam_fname, use.names = TRUE)
countDeletions(bam)
countInsertions(bam)
countIndels(bam)
indelPercent(bam)

CrispRVariants documentation built on Nov. 8, 2020, 11:09 p.m.