gnu: r-roxygen2: Move to (gnu packages cran).

* gnu/packages/statistics.scm (r-roxygen2): Move from here...
* gnu/packages/cran.scm (r-roxygen2): ...to here.

Change-Id: I012394d29596b2f76fd48b3b1894e317b806e3f5

gnu/packages/cran.scm

@@ -7282,6 +7282,47 @@ based on their size or the date of the last backup; inspired by the utility
 @code{logrotate}'.")
     (license license:expat)))
 
+(define-public r-roxygen2
+  (package
+    (name "r-roxygen2")
+    (version "7.3.3")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "roxygen2" version))
+              (sha256
+               (base32
+                "0jk1b71j7r61kmfa7028yybfyw3wjjka2hidlh6n3vdbw8z6whfs"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     (list r-brew
+           r-cli
+           r-commonmark
+           r-cpp11
+           r-desc
+           r-knitr
+           r-pkgload
+           r-purrr
+           r-r6
+           r-rlang
+           r-stringi
+           r-stringr
+           r-withr
+           r-xml2))
+    (native-inputs
+     (list r-digest
+           r-knitr
+           r-magrittr
+           r-r-methodss3
+           r-r-oo
+           r-rmarkdown
+           r-testthat))
+    (home-page "https://github.com/klutometis/roxygen")
+    (synopsis "In-source documentation system for R")
+    (description
+     "Roxygen2 is a Doxygen-like in-source documentation system for Rd,
+collation, and NAMESPACE files.")
+    (license license:gpl2+)))
+
 (define-public r-rpart
   (package
     (name "r-rpart")

gnu/packages/statistics.scm

@@ -1681,47 +1681,6 @@ the versions that @code{r-release} and @code{r-oldrel} refer to, and also all
 previous R versions and their release dates.")
     (license license:expat)))
 
-(define-public r-roxygen2
-  (package
-    (name "r-roxygen2")
-    (version "7.3.3")
-    (source (origin
-              (method url-fetch)
-              (uri (cran-uri "roxygen2" version))
-              (sha256
-               (base32
-                "0jk1b71j7r61kmfa7028yybfyw3wjjka2hidlh6n3vdbw8z6whfs"))))
-    (build-system r-build-system)
-    (propagated-inputs
-     (list r-brew
-           r-cli
-           r-commonmark
-           r-cpp11
-           r-desc
-           r-knitr
-           r-pkgload
-           r-purrr
-           r-r6
-           r-rlang
-           r-stringi
-           r-stringr
-           r-withr
-           r-xml2))
-    (native-inputs
-     (list r-digest
-           r-knitr
-           r-magrittr
-           r-r-methodss3
-           r-r-oo
-           r-rmarkdown
-           r-testthat))
-    (home-page "https://github.com/klutometis/roxygen")
-    (synopsis "In-source documentation system for R")
-    (description
-     "Roxygen2 is a Doxygen-like in-source documentation system for Rd,
-collation, and NAMESPACE files.")
-    (license license:gpl2+)))
-
 (define-public r-rstudioapi
   (package
     (name "r-rstudioapi")