[Bioperl-l] Why does Bio::DB::GFF::Feature::gff3_string swap start and stop coordinates??

Lincoln Stein lstein at cshl.edu
Thu May 10 17:13:09 UTC 2007


It's a workaround for some broken data sources. It should "never happen."

Lincoln

On 5/8/07, Cook, Malcolm <MEC at stowers-institute.org> wrote:
>
> Why does Bio::DB::GFF::Feature::gff3_string swap start and stop
> coordinates,
>
> as in:
>   ($start,$stop) = ($stop,$start) if defined($start) && defined($stop)
> && $start > $stop;
>
> I thought it is not legal for a feature to be so composed.
>
> Anyone know?
>
> Cheers,
>
> Malcolm Cook
> Stowers Institute for Medical Research - Kansas City, Missouri
>
>


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