13/17: gnu: Add r-numderiv.

[Ben Woodcroft]

benwoodcroft pushed a commit to branch master
in repository guix.

commit 06085b5bc547a4426b300bdb5d9ea9a032cf1d9c
Author: Raoul Jean Pierre Bonnal <address@hidden>
Date:   Sat Mar 11 21:39:29 2017 +1000

    gnu: Add r-numderiv.
    
    * gnu/packages/statistics.scm (r-numderiv): New variable.
    
    Signed-off-by: Ben Woodcroft <address@hidden>
---
 gnu/packages/statistics.scm | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/gnu/packages/statistics.scm b/gnu/packages/statistics.scm
index 79f7e56..b4d069f 100644
--- a/gnu/packages/statistics.scm
+++ b/gnu/packages/statistics.scm
@@ -4727,3 +4727,23 @@ distribution function of multivariate normal and \"t\" 
random variables, and
 for generating random vectors sampled from these distributions.  Probabilities
 are computed via non-Monte Carlo methods.")
     (license license:gpl2+)))
+
+(define-public r-numderiv
+  (package
+    (name "r-numderiv")
+    (version "2016.8-1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (cran-uri "numDeriv" version))
+       (sha256
+        (base32
+         "07ni52rwiap4wilfz94w5mrqaxr59axxmgn57857ip4p6qkiss0v"))))
+    (properties `((upstream-name . "numDeriv")))
+    (build-system r-build-system)
+    (home-page "https://cran.r-project.org/web/packages/numDeriv";)
+    (synopsis "Accurate numerical derivatives")
+    (description
+     "This package provides methods for calculating accurate numerical
+first and second order derivatives.")
+    (license license:gpl2)))