gnu: Add r-preprocesscore.

* gnu/packages/statistics.scm (r-preprocesscore): New variable.

gnu/packages/statistics.scm

@@ -3518,6 +3518,27 @@ (define-public r-dynamictreecut
 hierarchical clustering dendrograms.")
     (license license:gpl2+)))
 
+(define-public r-preprocesscore
+  (package
+    (name "r-preprocesscore")
+    (version "1.36.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (bioconductor-uri "preprocessCore" version))
+       (sha256
+        (base32
+         "1n8y12q7145f385gm2k3c6y3vwvin7jlb47la4mnl7mar6pq9kmp"))))
+    (properties
+     `((upstream-name . "preprocessCore")))
+    (build-system r-build-system)
+    (home-page "https://github.com/bmbolstad/preprocessCore")
+    (synopsis "Collection of pre-processing functions")
+    (description
+     "This package provides a library of core pre-processing and normalization
+routines.")
+    (license license:lgpl2.0+)))
+
 (define-public r-kernsmooth
   (package
     (name "r-kernsmooth")