01/01: gnu: Add r-lazyeval.

[Ricardo Wurmus]

rekado pushed a commit to branch master
in repository guix.

commit 6af481343001c552f1c12f1e3128159685abef07
Author: Vicente Vera Parra <address@hidden>
Date:   Tue Sep 15 14:12:32 2015 -0300

    gnu: Add r-lazyeval.
    
    * gnu/packages/statistics.scm (r-lazyeval): New variable.
---
 gnu/packages/statistics.scm |   19 +++++++++++++++++++
 1 files changed, 19 insertions(+), 0 deletions(-)

diff --git a/gnu/packages/statistics.scm b/gnu/packages/statistics.scm
index 1c3d696..6bd8e76 100644
--- a/gnu/packages/statistics.scm
+++ b/gnu/packages/statistics.scm
@@ -520,3 +520,22 @@ the pre and post conditions that your code should satisfy, 
while also
 producing friendly error messages so that your users know what they've done
 wrong.")
     (license license:gpl3+)))
+
+(define-public r-lazyeval
+  (package
+    (name "r-lazyeval")
+    (version "0.1.10")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://cran/src/contrib/lazyeval_"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "02qfpn2fmy78vx4jxr7g7rhqzcm1kcivfwai7lbh0vvpawia0qwh"))))
+    (build-system r-build-system)
+    (home-page "https://github.com/hadley/lazyeval";)
+    (synopsis "Lazy (non-standard) evaluation in R")
+    (description
+     "This package provides the tools necessary to do non-standard
+evaluation (NSE) in R.")
+    (license license:gpl3+)))