04/07: gnu: Add r-kknn.

[guix-commits]

lbraun pushed a commit to branch master
in repository guix.

commit 6c7aafbedf656ff7cacf39141c649b82abcd7bf7
Author: Lars-Dominik Braun <lars@6xq.net>
AuthorDate: Tue May 18 14:09:14 2021 +0200

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

diff --git a/gnu/packages/statistics.scm b/gnu/packages/statistics.scm
index 00378db..27df209 100644
--- a/gnu/packages/statistics.scm
+++ b/gnu/packages/statistics.scm
@@ -6134,3 +6134,24 @@ input, the effect size can be returned as standardized 
mean difference, Cohen's
 f, Hedges' g, Pearson's r or Fisher's transformation z, odds ratio or log odds,
 or eta squared effect size.")
     (license license:gpl3)))
+
+(define-public r-kknn
+  (package
+    (name "r-kknn")
+    (version "1.3.1")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (cran-uri "kknn" version))
+        (sha256
+          (base32
+            "1nzkg3dxaiqp87p56wm895qx5xn86hv5hjr73qvl1yiaxiq0x112"))))
+    (properties `((upstream-name . "kknn")))
+    (build-system r-build-system)
+    (propagated-inputs
+      `(("r-igraph" ,r-igraph) ("r-matrix" ,r-matrix)))
+    (home-page "https://github.com/KlausVigo/kknn";)
+    (synopsis "Weighted k-Nearest Neighbors")
+    (description
+      "Weighted k-Nearest Neighbors for Classification, Regression and 
Clustering.")
+    (license license:gpl2+)))