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  • Samtools mpileup calling independantly on multiple files

    Hi all,

    this may seem a rather odd question, I am ultimately looking to get a VCF file containing calls for all my samples in a batch of exomes.

    The issue is, I want to have active reference calls for any loci that are variant in my dataset, which I would get using the mpileup command with default settings; this is so I can ensure that we do not just have no coverage in some samples in a region for example, as opposed to them being reference.

    However, I do not want the statistical alterations that come with the default mpileup (i.e. upweighting of low-quality shared variants, downweighting of unique variants). I could just remove the '-v' flag, but that would give all calls for every base, which will give me huge files.

    Any ideas on a way to do this? I am yet to have any ideas that do not seem hugely cumbersome.


    Many thanks in advance.

  • #2
    Would '-B ... disable BAQ computation' work for you?

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    • #3
      Originally posted by westerman View Post
      Would '-B ... disable BAQ computation' work for you?
      My understanding of the BAQ computation is that it alters the BAQ, particularly around indels, to my knowledge this would not benefit what I'm trying to do here?

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