IdRefs
An idref is simply an attribute in an xml document that points to anothers id. So:
<seq id="a1" />
<feature seq="a1">
the seq's id is the ID and the feature seq attribute is the IdRef which points to the seq's id.
In BioXML, many elements use the bx-link:ref, which has an IdRef attribute, instead of having an idref themselves. This allows for greater flexibilty, as the bx-link allows you to link external documents as well as the local one.
--BradMarshall
Related pages: Unclassified?
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