From f96eda90d5b015057dfd28d4ef7466dbae4bc3f5 Mon Sep 17 00:00:00 2001
From: Ricardo Wurmus <rekado@elephly.net>
Date: Fri, 2 Mar 2018 23:06:57 +0100
Subject: gnu: Add r-expm.

* gnu/packages/cran.scm (r-expm): New variable.
---
 gnu/packages/cran.scm | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index ce676334c6..e7efab78ec 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -2624,3 +2624,24 @@ (define-public r-trend
 Test, Bartels rank von Neumann's ratio test, Wald-Wolfowitz Test) and the two
 sample Robust Rank-Order Distributional Test.")
     (license license:gpl3)))
+
+(define-public r-expm
+  (package
+    (name "r-expm")
+    (version "0.999-2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (cran-uri "expm" version))
+       (sha256
+        (base32
+         "1mihl67kvv1xv0figp25jkmwfn4iwkcx15cng2348y8gm6zybw9q"))))
+    (build-system r-build-system)
+    (propagated-inputs `(("r-matrix" ,r-matrix)))
+    (native-inputs `(("gfortran" ,gfortran)))
+    (home-page "http://r-forge.r-project.org/projects/expm/")
+    (synopsis "Tools for matrix exponentials and related quantities")
+    (description
+     "This package provides tools for the computation of the matrix
+exponential, logarithm, square root, and related quantities.")
+    (license license:gpl2+)))
-- 
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