Count tail lengths
count_tails.RdCount tail lengths observed at each site, and how many are considered censored.
Arguments
- min_tail
Tail lengths shorter than this are discarded.
- length_trim
This many bases are effectively trimmed from the ends of reads.
- must_be_close_to_site
Are tail lengths only valid if reads ended very close to the site position. This applies to tail lengths from read 1, but not tail lengths from read 2.