[Bioperl-l] Bio::AnnotatableI vs Bio::FeatureHolderI

aaron.j.mackey at gsk.com aaron.j.mackey at gsk.com
Fri Feb 23 09:36:18 EST 2007

The fundamental difference (in my mind) between a feature and an 
annotation, is that a feature has a location/range, and thus the 
information represented in the feature is applicable only to that 
location/range.  An annotation, on the other hand, is "global", or at 
least non-localizable (note: a feature with a "fuzzy" location of 
"somewhere along this sequence, but I'm not sure where" is still not 
global - if you did/could know the location, you'd describe it as a 
feature, so it shouldn't be represented with an annotation).


bioperl-l-bounces at lists.open-bio.org wrote on 02/22/2007 03:36:33 PM:

> Are Bio::AnnotatableI and Bio::FeatureHolderI competing interfaces?
> I get the impression they are designed to do similar things.  If so is 
> one deprecated and the other preferred?
> If their responsibilities are orthogonal to each other, what sorts of 
> tasks are suited to each?
> Thanks,
> Michael
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