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  • deepsea
    Member
    • Jan 2010
    • 12
    #1

    cufflinks --compatible-hits-norm

    Hi,

    I am testing cufflinks with two different normalization methods: total-hits-norm and compatible-hits-norm. My understanding is that the only difference between these two methods is the FPKM denominator: one is the number of all hits, the other is the number of hits within the reference GTF. So the ratios of FPKM values calculated by two methods should be a single fixed number, which is the ratio of hits. But, the ratios I got is a distribution. Anybody have an idea of the exact meaning of compatible-hits-norm? Thanks!
    Tags: None
  • sdriscoll
    I like code
    • Sep 2009
    • 436
    #2
    sounds fishy. i wanna try this out and see what results i get. I'll report back unless of course someone comes in an explains it.
    /* Shawn Driscoll, Gene Expression Laboratory, Pfaff
    Salk Institute for Biological Studies, La Jolla, CA, USA */

    Comment

    • deepsea
      Member
      • Jan 2010
      • 12
      #3
      Oh I am very sorry! It is my problem: one set was processed slightly differently. :-(

      Thanks, sdriscoll!

      Comment

      • sdriscoll
        I like code
        • Sep 2009
        • 436
        #4
        indeed. i tried this today and the difference in FPKM values between the two normalizations was constant out to 4 decimal places.
        /* Shawn Driscoll, Gene Expression Laboratory, Pfaff
        Salk Institute for Biological Studies, La Jolla, CA, USA */

        Comment

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