[bug#53349] [PATCH 4/9] gnu: Add r-chorddiag.

[zimoun <zimon.toutoune@gmail.com>]

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

diff --git a/gnu/packages/statistics.scm b/gnu/packages/statistics.scm
index f777ddf332..7fc1de6cc5 100644
--- a/gnu/packages/statistics.scm
+++ b/gnu/packages/statistics.scm
@@ -16,6 +16,7 @@
 ;;; Copyright © 2021 Bonface Munyoki Kilyungi <me@bonfacemunyoki.com>
 ;;; Copyright © 2021 Lars-Dominik Braun <lars@6xq.net>
 ;;; Copyright © 2021 Frank Pursel <frank.pursel@gmail.com>
+;;; Copyright © 2022 Simon Tournier <zimon.toutoune@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -847,6 +848,35 @@ (define-public r-bit64
 caching.")
     (license license:gpl2)))
 
+(define-public r-chorddiag
+  (package
+    (name "r-chorddiag")
+    (version "0.1.3")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/mattflor/chorddiag")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32
+         "1bpy9q861l1hyyiqbx2f7qzp7j7im8bkcfdwgxzk5fm0250p359a"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     (list r-htmlwidgets r-rcolorbrewer))
+    (native-inputs
+     (list r-knitr))
+    (home-page "https://github.com/mattflor/chorddiag")
+    (synopsis "Create D3 chord diagram")
+    (description
+     "This package provides tools to create interactive chords diagrams via
+the D3 Javascript library.  Chord diagrams show directed relationships among a
+group of entities.  This package is based on
+@url{http://bl.ocks.org/mbostock/4062006} with some modifications (fading) and
+additions (tooltips, bipartite diagram type).")
+    (license license:gpl3+)))
+
 (define-public r-dichromat
   (package
     (name "r-dichromat")
-- 
2.34.0