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  • ThePresident
    Member
    • Jun 2012
    • 72

    #16
    Yeah, bioinformatics can be quite frustrating... Although, the feeling is great when you get it done and you see all those beautiful tables with genes, aligned with p values and so on

    Comment

    • billstevens
      Senior Member
      • Mar 2012
      • 120

      #17
      Hey guys, is there an extra step needed for DESeq to adjust for library size?

      What I mean is, I have three replicates, and two of them have half as many reads as the first.

      So my file after pasting it into Excel, looks like this

      Untreated Treated
      Gene 1 6 3 3 8 4 4
      Gene 2 10 5 5 12 6 6
      .....

      I then use this table to use for DESeq. Does DESeq adjust for each sequencing depth?

      Comment

      • dpryan
        Devon Ryan
        • Jul 2011
        • 3478

        #18
        Originally posted by billstevens View Post
        Hey guys, is there an extra step needed for DESeq to adjust for library size?
        This is covered in the DESeq vignette, see also the "estimateSizeFactors" command, which is part of the standard work flow.

        Comment

        • billstevens
          Senior Member
          • Mar 2012
          • 120

          #19
          yeah sorry, I was just about to write that.

          Comment

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