>From e0d330ab328c1adcb0674b9a739840bdff9ffb0d Mon Sep 17 00:00:00 2001
From: Lars-Dominik Braun <address@hidden>
Date: Fri, 31 Jan 2020 16:55:46 +0100
Subject: [v2 04/34] gnu: Add package r-proxyc

* gnu/packages/cran.scm (r-proxyc): New variable.
---
 gnu/packages/cran.scm | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index 01a6b5dad8..dcdba09f85 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -19342,3 +19342,33 @@ ARIMA modelling.")
      "Xiaobei's miscellaneous classes and functions, which are useful when
 developing R packages for OOP using R Reference Class.")
     (license license:gpl2+)))
+
+(define-public r-proxyc
+  (package
+    (name "r-proxyc")
+    (version "0.1.5")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (cran-uri "proxyC" version))
+       (sha256
+        (base32
+         "159bc42x4shm6n3rh9fc8ziv3ivq0ipmpbasrh279hhn1prc8gg6"))))
+    (properties `((upstream-name . "proxyC")))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-matrix" ,r-matrix)
+       ("r-rcpp" ,r-rcpp)
+       ("r-rcpparmadillo" ,r-rcpparmadillo)
+       ("r-rcppparallel" ,r-rcppparallel)))
+    (home-page
+     "https://cran.r-project.org/package=proxyC")
+    (synopsis
+     "Computes proximity in large sparse matrices")
+    (description
+     "Computes proximity between rows or columns of large matrices efficiently
+in C++.  Functions are optimised for large sparse matrices using the Armadillo
+and Intel TBB libraries.  Among several built-in similarity/distance measures,
+computation of correlation, cosine similarity and Euclidean distance is
+particularly fast.")
+    (license license:gpl3)))
-- 
2.20.1