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

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

gnu/packages/cran.scm

@@ -22143,3 +22143,26 @@ (define-public r-scatterpie
      "This package creates scatterpie plots, especially useful for plotting
 pies on a map.")
     (license license:artistic2.0)))
+
+(define-public r-boruta
+  (package
+    (name "r-boruta")
+    (version "7.0.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (cran-uri "Boruta" version))
+       (sha256
+        (base32
+         "0y2w4wb45kfnzrxcrdsiwgal9fsnlr3wad1sqdc70qv8gp921xbg"))))
+    (properties `((upstream-name . "Boruta")))
+    (build-system r-build-system)
+    (propagated-inputs `(("r-ranger" ,r-ranger)))
+    (home-page "https://gitlab.com/mbq/Boruta/")
+    (synopsis "Wrapper algorithm for all relevant feature selection")
+    (description
+     "This package provides an all relevant feature selection wrapper
+algorithm.  It finds relevant features by comparing original attributes'
+importance with importance achievable at random, estimated using their
+permuted copies (shadows).")
+    (license license:gpl2+)))

gnu/packages/statistics.scm

@@ -5903,26 +5903,3 @@ (define-public emacs-ess
 Emacs.  It is designed to support editing of scripts and interaction with
 various statistical analysis programs such as R, Julia, and JAGS.")
     (license license:gpl2+)))
-
-(define-public r-boruta
-  (package
-    (name "r-boruta")
-    (version "7.0.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (cran-uri "Boruta" version))
-       (sha256
-        (base32
-         "0y2w4wb45kfnzrxcrdsiwgal9fsnlr3wad1sqdc70qv8gp921xbg"))))
-    (properties `((upstream-name . "Boruta")))
-    (build-system r-build-system)
-    (propagated-inputs `(("r-ranger" ,r-ranger)))
-    (home-page "https://gitlab.com/mbq/Boruta/")
-    (synopsis "Wrapper algorithm for all relevant feature selection")
-    (description
-     "This package provides an all relevant feature selection wrapper
-algorithm.  It finds relevant features by comparing original attributes'
-importance with importance achievable at random, estimated using their
-permuted copies (shadows).")
-    (license license:gpl2+)))