ANGSD: Analysis of next generation Sequencing Data

Latest tar.gz version is (0.938/0.939 on github), see Change_log for changes, and download it here.

Error estimation: Difference between revisions

From angsd
Jump to navigation Jump to search
Line 1: Line 1:
=Error estimation from polymorphic sites=
=Error estimation from polymorphic sites=
The method for estimating typespecific errors is described in [[Kim2011]], and is based on the ''counts'' of the 4 different nucleotides. This method should be applied to the site that are variable and the measure for variability is the simple MAF estimator that is described in [[Li2010]].
The method for estimating typespecific errors is described in [[Kim2011]], and is based on the ''counts'' of the 4 different nucleotides. This method should be applied to the sites that are variable and the measure for variability is the simple MAF estimator that is described in [[Li2010]].


[[Kim11|Citation]]
==options==
; -cutoff [float]
default 0.02. This means we only run the error estimation on sites with a MAF>0.02.
; -errors [filename]
This file should contain a guess of the typespecific errors. NB this is not implemented in the current version
==example==


=Error estimation using an outgroup and an error free individual=
=Error estimation using an outgroup and an error free individual=

Revision as of 22:35, 11 October 2012

Error estimation from polymorphic sites

The method for estimating typespecific errors is described in Kim2011, and is based on the counts of the 4 different nucleotides. This method should be applied to the sites that are variable and the measure for variability is the simple MAF estimator that is described in Li2010.

options

-cutoff [float]

default 0.02. This means we only run the error estimation on sites with a MAF>0.02.

-errors [filename]

This file should contain a guess of the typespecific errors. NB this is not implemented in the current version

example

Error estimation using an outgroup and an error free individual

-doAncError [int]
-anc [filename]

fasta file with the ancestral alleles

-ref [filename]

fasta file of a reference (error free) individual.

-doAncError 1
-doAncError 2

additional options

-minQ [int]

default 0. Minimum allowed base quality score

-minMapQ [int]

default 0. Minimum allowed mapping quality score