convert to zero-based coords

[bw2]

No description provided.

[codecov-io]

Codecov Report

Merging #57 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #57   +/-   ##
=======================================
  Coverage   90.29%   90.29%           
=======================================
  Files           4        4           
  Lines         371      371           
=======================================
  Hits          335      335           
  Misses         36       36

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[bw2]

this isn't well documented, but I'm pretty sure TRF .dat files have 1-based start coords.

[hdashnow]

Thanks! Ah the joys of bioinformatics formats. I'll have to check my reference data too.

[bw2]

and I'm just basing this on the dat files being off-by-one in IGV. I never did find docs for this.