20/39: gnu: Add r-proxy.

[Ricardo Wurmus]

rekado pushed a commit to branch master
in repository guix.

commit 3349faecf532dd88450a4e85db6d571c657d07d1
Author: Ricardo Wurmus <address@hidden>
Date:   Mon Aug 14 21:55:57 2017 +0200

    gnu: Add r-proxy.
    
    * gnu/packages/cran.scm (r-proxy): New variable.
---
 gnu/packages/cran.scm | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index 35d0965..7526493 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -530,3 +530,23 @@ these functions include a pairwise plot matrix, a two 
group pairwise plot
 matrix, a parallel coordinates plot, a survival plot, and several functions to
 plot networks.")
     (license license:gpl2+)))
+
+(define-public r-proxy
+  (package
+    (name "r-proxy")
+    (version "0.4-17")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (cran-uri "proxy" version))
+       (sha256
+        (base32
+         "0bg1fn96qrj8whmnl7c3gv244ksm2ykxxsd0zrmw4lb6465pizl2"))))
+    (build-system r-build-system)
+    (home-page "http://cran.r-project.org/web/packages/proxy";)
+    (synopsis "Distance and similarity measures")
+    (description
+     "This package provides an extensible framework for the efficient
+calculation of auto- and cross-proximities, along with implementations of the
+most popular ones.")
+    (license license:gpl2)))