ReadLengthDistribution

Outputs the read lengths of all the reads in a file.

Category Diagnostics and Quality Control Tools

Traversal ReadWalker

PartitionBy READ

Overview

Generates a table with the read lengths categorized per sample. If the file has no sample information (no read groups) it considers all reads to come from the same sample.

Input

A BAM file.

Output

A human/R readable table of tab separated values with one column per sample and one row per read.

Examples

    java
      -jar GenomeAnalysisTK.jar
      -T ReadLengthDistribution
      -I example.bam
      -R reference.fasta
      -o example.tbl

Additional Information

Read filters

This Read Filter is automatically applied to the data by the Engine before processing by ReadLengthDistribution.

MalformedReadFilter

Command-line Arguments

Inherited arguments

The arguments described in the entries below can be supplied to this tool to modify its behavior. For example, the -L argument directs the GATK engine restricts processing to specific genomic intervals (this is an Engine capability and is therefore available to all GATK walkers).

CommandLineGATK

ReadLengthDistribution specific arguments

This table summarizes the command-line arguments that are specific to this tool. For details, see the list further down below the table.

Name	Type	Default value	Summary
Optional
--out	PrintStream	stdout	An output file created by the walker. Will overwrite contents if file exists

Argument details

Arguments in this list are specific to this tool. Keep in mind that other arguments are available that are shared with other tools (e.g. command-line GATK arguments); see Inherited arguments above.

--out / -o ( PrintStream with default value stdout )

An output file created by the walker. Will overwrite contents if file exists.

GATK version 2.5-2-gdb4546e built at 2013/05/01 09:32:36.