gnu: Add r-copyhelper.

* gnu/packages/bioinformatics.scm (r-copyhelper): New variable.

gnu/packages/bioinformatics.scm

@@ -7894,3 +7894,29 @@ common bioinformatics tools.")
      "This package provides tools for processing short read data from ChIPseq
 experiments.")
     (license license:artistic2.0)))
+
+(define-public r-copyhelper
+  (package
+    (name "r-copyhelper")
+    (version "1.6.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "http://bioconductor.org/packages/release/"
+                           "data/experiment/src/contrib/CopyhelpeR_"
+                           version ".tar.gz"))
+       (sha256
+        (base32
+         "0x7cyynjmxls9as2gg0iyp9x5fpalxmdjq914ss7i84i9zyk5bhq"))))
+    (properties `((upstream-name . "CopyhelpeR")))
+    (build-system r-build-system)
+    (home-page "http://bioconductor.org/packages/CopyhelpeR/")
+    (synopsis "Helper files for CopywriteR")
+    (description
+     "This package contains the helper files that are required to run the
+Bioconductor package CopywriteR.  It contains pre-assembled 1kb bin GC-content
+and mappability files for the reference genomes hg18, hg19, hg38, mm9 and
+mm10.  In addition, it contains a blacklist filter to remove regions that
+display copy number variation.  Files are stored as GRanges objects from the
+GenomicRanges Bioconductor package.")
+    (license license:gpl2)))