05/05: gnu: Add r-a3.

[Leo Famulari]

lfam pushed a commit to branch master
in repository guix.

commit 16b0e8da48ef9398797a22e274d5fcb37e24e448
Author: pimi <address@hidden>
Date:   Thu Aug 23 13:33:24 2018 +0200

    gnu: Add r-a3.
    
    gnu/packages/cran.scm (r-a3): New variable.
    
    Signed-off-by: Leo Famulari <address@hidden>
---
 gnu/packages/cran.scm | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index afa5d97..eb6bf9c 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -4921,3 +4921,26 @@ modify the data or the graphical parameters of one or 
multiple interactive
 charts.  It is useful to quickly explore visually some data or for package
 developers to generate user interfaces easy to maintain.")
     (license license:gpl2+)))
+
+(define-public r-a3
+  (package
+    (name "r-a3")
+    (version "1.0.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (cran-uri "A3" version))
+       (sha256
+        (base32 "017hq9pjsv1h9i7cqk5cfx27as54shlhdsdvr6jkhb8jfkpdb6cw"))))
+    (properties `((upstream-name . "A3")))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-pbapply" ,r-pbapply)
+       ("r-xtable" ,r-xtable)))
+    (home-page "https://cran.r-project.org/web/packages/A3/";)
+    (synopsis "Error metrics for predictive models")
+    (description
+     "This package supplies tools for tabulating and analyzing the results of 
predictive
+models.  The methods employed are applicable to virtually any predictive model
+and make comparisons between different methodologies straightforward.")
+    (license license:gpl2+)))