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

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

Signed-off-by: Ricardo Wurmus <rekado@elephly.net>

gnu/packages/cran.scm

@@ -15741,3 +15741,23 @@ unique identifiers, and whether it is a certain length.  In addition,
 files and to efficiently import multiple tabular data files into one
 data.table.")
     (license license:gpl3)))
+
+(define-public r-quadprog
+  (package
+    (name "r-quadprog")
+    (version "1.5-8")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (cran-uri "quadprog" version))
+       (sha256
+        (base32 "1ka9g8zak8sg4y2xbz93dfrldznlk9qpd4pq9z21cdcdn3b8s4i2"))))
+    (build-system r-build-system)
+    (native-inputs
+     `(("gfortran" ,gfortran)))
+    (home-page "https://cran.r-project.org/web/packages/quadprog")
+    (synopsis "Functions to solve quadratic programming problems")
+    (description
+     "This package contains routines and documentation for solving quadratic
+programming problems.")
+    (license license:gpl3+)))

gnu/packages/maths.scm

@@ -2342,26 +2342,6 @@ sparse system of linear equations A x = b using Gaussian elimination.")
     (inputs
      (alist-delete "pt-scotch" (package-inputs mumps-openmpi)))))
 
-(define-public r-quadprog
-  (package
-    (name "r-quadprog")
-    (version "1.5-8")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (cran-uri "quadprog" version))
-       (sha256
-        (base32 "1ka9g8zak8sg4y2xbz93dfrldznlk9qpd4pq9z21cdcdn3b8s4i2"))))
-    (build-system r-build-system)
-    (native-inputs
-     `(("gfortran" ,gfortran)))
-    (home-page "https://cran.r-project.org/web/packages/quadprog")
-    (synopsis "Functions to solve quadratic programming problems")
-    (description
-     "This package contains routines and documentation for solving quadratic
-programming problems.")
-    (license license:gpl3+)))
-
 (define-public r-pracma
   (package
     (name "r-pracma")