gnu: Add r-laeken.

* gnu/packages/cran.scm (r-laeken): New variable.

gnu/packages/cran.scm

@@ -1525,3 +1525,25 @@ (define-public r-performanceanalytics
 where possible.")
     ;; Either version may be picked.
     (license (list license:gpl2 license:gpl3))))
+
+(define-public r-laeken
+  (package
+    (name "r-laeken")
+    (version "0.4.6")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (cran-uri "laeken" version))
+       (sha256
+        (base32
+         "1rhkv1kk508pwln1d325iq4fink2ncssps0ypxi52j9d7wk78la6"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-boot" ,r-boot)
+       ("r-mass" ,r-mass)))
+    (home-page "http://cran.r-project.org/web/packages/laeken/")
+    (synopsis "Estimation of indicators on social exclusion and poverty")
+    (description "This package provides tools for the estimation of indicators
+on social exclusion and poverty, as well as an implementation of Pareto tail
+modeling for empirical income distributions.")
+    (license license:gpl2+)))