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VCFLEFTALIGN(1) 	vcfleftalign (VCF transformation)	 VCFLEFTALIGN(1)

NAME
     vcfleftalign

SYNOPSIS
     vcfleftalign options [file]

DESCRIPTION
     Left-align  indels  and  complex  variants  in  the  input using a pairwise
     ref/alt alignment followed  by  a	heuristic,  iterative  left  realignment
     process  that  shifts indel representations to their absolute leftmost (5')
     extent.

OPTIONS
	    This is the same procedure used in the internal left alignment in
	    freebayes, and can be used when preparing VCF files for input to
	    freebayes to decrease positional representation differences between
	    the input alleles and left-realigned alignments.

	    options:

		    -r, --reference FILE  Use this reference as a basis for realignment.
		    -w, --window N	  Use a window of this many bp when left aligning (150).

	    Left-aligns variants in the specified input file or stdin.	Window
	    size is determined dynamically according to the entropy of the regions
	    flanking the indel.  These must have entropy > 1 bit/bp, or be shorter
	    than ~5kb.

	    Type: transformation

EXIT VALUES
     0	    Success

     not 0  Failure

SEE ALSO
     vcflib(1)

OTHER
LICENSE
     Copyright 2011-2025 (C) Erik Garrison and	vcflib	contributors.	MIT  li-
     censed.  Copyright 2020-2025 (C) Pjotr Prins.

AUTHORS
     Erik Garrison and vcflib contributors.

vcfleftalign (vcflib)						 VCFLEFTALIGN(1)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=vcfleftalign&sektion=1&manpath=FreeBSD+Ports+15.1.quarterly>

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