Difference between revisions of "FASTQC and MultiQC"

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=Introduction=
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  No Name [/home/nutria], b1, wiki
 
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  |Introduction
Assessment of short read quality
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  |FastQC
 
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= . |fastqc's help file
=MultiQC =
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  |MultiQC
 
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  |multiqc's help file
A relatively new tool that aggregates the output of FASTQC into one report.
 
 
 
* available on the command line with any module loading as it is a python module (already installed easily via pip)
 
 
 
Go into the directory where the FASTQC output is and run
 
  multiqc .
 
 
 
the dot stands for the local directory, and is obligatory.
 
 
 
Under its general statistics we get the following headings:
 
 
 
* Sample Name
 
* % Dups
 
* % GC
 
* Length
 
* M Seqs, millions of sequences
 
 
 
= multiqc's help file =
 
 
 
Usage: multiqc [OPTIONS] <analysis directory>
 
 
  MultiQC aggregates results from bioinformatics analyses across many
 
  samples into a single report.
 
 
  It searches a given directory for analysis logs and compiles a HTML
 
  report. It's a general use tool, perfect for summarising the output from
 
  numerous bioinformatics tools.
 
 
  To run, supply with one or more directory to scan for analysis results.
 
  To run here, use 'multiqc .'
 
 
  See http://multiqc.info for more details.
 
 
  Author: Phil Ewels (http://phil.ewels.co.uk)
 
 
Options:
 
  -f, --force                    Overwrite any existing reports
 
  -d, --dirs                      Prepend directory to sample names
 
  -s, --fullnames                Do not clean the sample names (leave as full
 
                                  file name)
 
  -i, --title TEXT                Report title. Printed as page header, used
 
                                  for filename if not otherwise specified.
 
  -n, --filename TEXT            Report filename. Use 'stdout' to print to
 
                                  standard out.
 
  -o, --outdir TEXT              Create report in the specified output
 
                                  directory.
 
  -t, --template [default|default_dev|geo|simple]
 
                                  Report template to use.
 
  -x, --ignore TEXT              Ignore analysis files (glob expression)
 
  -e, --exclude [module name]    Do not use this module. Can specify multiple
 
                                  times.
 
  -m, --module [module name]      Use only this module. Can specify multiple
 
                                  times.
 
  --data-dir / --no-data-dir      Specify whether the parsed data directory
 
                                  should be created.
 
  -k, --data-format [tsv|yaml|json]
 
                                  Output parsed data in a different format
 
  -z, --zip-data-dir              Compress the data directory.
 
  --flat                          Use only flat plots (static images)
 
  --interactive                  Use only interactive plots (HighCharts
 
                                  Javascript)
 
  -c, --config PATH              Specific config file to load, after those in
 
                                  MultiQC dir / home dir / working dir.
 
  -v, --verbose                  Increase output verbosity.
 
  -q, --quiet                    Only show log warnings
 
  --version                      Show the version and exit.
 
  -h, --help                      Show this message and exit.
 
 
 
 
 
= fastqc's help file =
 
 
 
SYNOPSIS
 
 
    fastqc seqfile1 seqfile2 .. seqfileN
 
 
    fastqc [-o output dir] [--(no)extract] [-f fastq|bam|sam] [-c contaminant file] seqfile1 .. seqfileN
 
 
DESCRIPTION
 
 
    FastQC reads a set of sequence files and produces from each one a quality
 
    control report consisting of a number of different modules, each one of
 
    which will help to identify a different potential type of problem in your
 
    data.
 
   
 
    If no files to process are specified on the command line then the program
 
    will start as an interactive graphical application.  If files are provided
 
    on the command line then the program will run with no user interaction
 
    required.  In this mode it is suitable for inclusion into a standardised
 
    analysis pipeline.
 
   
 
    The options for the program as as follows:
 
   
 
    -h --help      Print this help file and exit
 
   
 
    -v --version    Print the version of the program and exit
 
   
 
    -o --outdir    Create all output files in the specified output directory.
 
                    Please note that this directory must exist as the program
 
                    will not create it.  If this option is not set then the
 
                    output file for each sequence file is created in the same
 
                    directory as the sequence file which was processed.
 
                   
 
    --casava        Files come from raw casava output. Files in the same sample
 
                    group (differing only by the group number) will be analysed
 
                    as a set rather than individually. Sequences with the filter
 
                    flag set in the header will be excluded from the analysis.
 
                    Files must have the same names given to them by casava
 
                    (including being gzipped and ending with .gz) otherwise they
 
                    won't be grouped together correctly.
 
                   
 
    --nofilter      If running with --casava then don't remove read flagged by
 
                    casava as poor quality when performing the QC analysis.
 
                 
 
    --extract      If set then the zipped output file will be uncompressed in
 
                    the same directory after it has been created.  By default
 
                    this option will be set if fastqc is run in non-interactive
 
                    mode.
 
                   
 
    -j --java      Provides the full path to the java binary you want to use to
 
                    launch fastqc. If not supplied then java is assumed to be in
 
                    your path.
 
                 
 
    --noextract    Do not uncompress the output file after creating it.  You
 
                    should set this option if you do not wish to uncompress
 
                    the output when running in non-interactive mode.
 
                   
 
    --nogroup      Disable grouping of bases for reads >50bp. All reports will
 
                    show data for every base in the read.  WARNING: Using this
 
                    option will cause fastqc to crash and burn if you use it on
 
                    really long reads, and your plots may end up a ridiculous size.
 
                    You have been warned!
 
                   
 
    -f --format    Bypasses the normal sequence file format detection and
 
                    forces the program to use the specified format.  Valid
 
                    formats are bam,sam,bam_mapped,sam_mapped and fastq
 
                   
 
    -t --threads    Specifies the number of files which can be processed
 
                    simultaneously.  Each thread will be allocated 250MB of
 
                    memory so you shouldn't run more threads than your
 
                    available memory will cope with, and not more than
 
                    6 threads on a 32 bit machine
 
                 
 
    -c              Specifies a non-default file which contains the list of
 
    --contaminants  contaminants to screen overrepresented sequences against.
 
                    The file must contain sets of named contaminants in the
 
                    form name[tab]sequence.  Lines prefixed with a hash will
 
                    be ignored.
 
 
    -a              Specifies a non-default file which contains the list of
 
    --adapters      adapter sequences which will be explicity searched against
 
                    the library. The file must contain sets of named adapters
 
                    in the form name[tab]sequence.  Lines prefixed with a hash
 
                    will be ignored.
 
                   
 
    -l              Specifies a non-default file which contains a set of criteria
 
    --limits        which will be used to determine the warn/error limits for the
 
                    various modules.  This file can also be used to selectively
 
                    remove some modules from the output all together.  The format
 
                    needs to mirror the default limits.txt file found in the
 
                    Configuration folder.
 

Revision as of 13:50, 13 April 2017

No Name [/home/nutria], b1, wiki
 |Introduction
 |FastQC

= . |fastqc's help file

 |MultiQC
 |multiqc's help file