utils, XML, RCurl, AnnotationDbi, progress, stringr, httr

annotate, BiocStyle, knitr, rmarkdown, testthat

In recent years a wealth of biological data has become available
        in public data repositories. Easy access to these valuable data 
        resources and firm integration with data analysis is needed for
        comprehensive bioinformatics data analysis.  biomaRt provides an
        interface to a growing collection of databases implementing the
        BioMart software suite (<http://www.biomart.org>). The package enables
        retrieval of large amounts of data in a uniform way without the need to
        know the underlying database schemas or write complex SQL queries. 
        The most prominent examples of BioMart databases are maintain by Ensembl, which
        provides biomaRt users direct access to a diverse set of data and enables
        a wide range of powerful online queries from gene annotation to 
        database mining.

Steffen Durinck [aut],
  Wolfgang Huber [aut],
  Sean Davis [ctb],
  Francois Pepin [ctb],
  Vince S Buffalo [ctb],
  Mike Smith [ctb, cre]

Dirk Eddelbuettel <edd@debian.org> with contributions 
 by Antoine Lucas, Jarek Tuszynski, Henrik Bengtsson, Simon Urbanek,
 Mario Frasca, Bryan Lewis, Murray Stokely, Hannes Muehleisen,
 Duncan Murdoch, Jim Hester, Wush Wu, Qiang Kou, Thierry Onkelinx, 
 Michel Lang, Viliam Simko, Kurt Hornik, Radford Neal, Kendon Bell,
 Matthew de Queljoe, Ion Suruceanu, and Bill Denney.

Create Compact Hash Digests of R Objects

Implementation of a function 'digest()' for the creation 
 of hash digests of arbitrary R objects (using the 'md5', 'sha-1', 'sha-256', 
 'crc32', 'xxhash', 'murmurhash' and 'spookyhash' algorithms) permitting easy
 comparison of R language objects, as well as functions such as'hmac()' to
 create hash-based message authentication code. Please note that this package
 is not meant to be deployed for cryptographic purposes for which more
 comprehensive (and widely tested) libraries such as 'OpenSSL' should be
 used.