12/23: gnu: Add r-cobs.

[guix-commits]

rekado pushed a commit to branch master
in repository guix.

commit 5f673e2c1c6d0af1475f97dca087c6ccb2dd4d4f
Author: Ricardo Wurmus <address@hidden>
Date:   Tue Mar 12 22:20:38 2019 +0100

    gnu: Add r-cobs.
    
    * gnu/packages/cran.scm (r-cobs): New variable.
---
 gnu/packages/cran.scm | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index 07a6da3..85b75de 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -11048,3 +11048,25 @@ users of rARPACK are advised to switch to the RSpectra 
package.")
 compositional data (e.g. portions of substances) and positive
 numbers (e.g. concentrations).")
     (license license:gpl2+)))
+
+(define-public r-cobs
+  (package
+    (name "r-cobs")
+    (version "1.3-3")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (cran-uri "cobs" version))
+       (sha256
+        (base32
+         "1pqvz7czcchri4x79g78hbwyagb3bqzdqb047zkbdinyz067c7kb"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-quantreg" ,r-quantreg)
+       ("r-sparsem" ,r-sparsem)))
+    (home-page "https://cran.r-project.org/web/packages/cobs";)
+    (synopsis "Constrained B-Splines (sparse matrix based)")
+    (description
+     "This package provides qualitatively constrained (regression) smoothing
+splines via linear programming and sparse matrices.")
+    (license license:gpl2+)))