oai_metadata

one of "date", "publisher", "identifier" for the study

returned from <code>download_metadata</code> function.
if not specified will download latest copy from treebase.  Pass
in the value during repeated calls to speed function runtime substantially

metadata

additional arguments to <code>download_metadata</code>

Search the OAI-PMH metadata by date, publisher, or identifier

internal

Interface to the API for 'TreeBASE' (http://treebase.org)
  from 'R.' 'TreeBASE' is a repository of user-submitted phylogenetic 
  trees (of species, population, or genes) and the data used to create
  them.

oai_metadata: Search the OAI-PMH metadata by date, publisher, or identifier

Description

Usage

Arguments

Value