You are viewing an old version of this page. View the current version.

Compare with Current View Page History

Version 1 Next »

Hi,

I ran flux capacitor on a human BAM file with 9902168 aligned paired end reads (18804336 aligned reads) using the parameter file

  ANNOTATION_FILE ensembl_human_71.gtf

  COUNT_ELEMENTS [SPLICE_JUNCTIONS, INTRONS]

  ANNOTATION_MAPPING PAIRED

 

Now if I only consider the entries of the output GTF file with feature = "transcript" (ignoring intron and junction entries) and add up the counts-per-million (CPM) values:

   RPKM * length / 1000

over all these entries, then I obtain as sum 1568177.63124 although by definition the sum of the CPM values should be 1000000.

 

Can you comment on this? Why do I get signifcantly more normalized read counts than I should?

 

Best regrads,

Sven

  • No labels