Subject: [bug#59908] [PATCH 2/4] gnu: Add r-ptw.

From: Mădălin Ionel Patrașcu<[email-masked]>
Date: Thu, 8 Dec 2022 20:22:30 +0100

* gnu/packages/cran.scm (r-ptw): New variable.
---
 gnu/packages/cran.scm | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index 016eeb4821..4561d50e02 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -4858,6 +4858,32 @@ (define-public r-powerlaw
     ;; Any of these GPL versions.
     (license (list license:gpl2 license:gpl3))))
 
+(define-public r-ptw
+  (package
+    (name "r-ptw")
+    (version "1.9-16")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "ptw" version))
+              (sha256
+               (base32
+                "0rma3h9ksc5qigdvk5vappb4ipd4rpk64wckzcxvxspakr5w71vy"))))
+    (properties `((upstream-name . "ptw")))
+    (build-system r-build-system)
+    (propagated-inputs (list r-rcppde))
+    (home-page "https://github.com/rwehrens/ptw")
+    (synopsis "Parametric time warping")
+    (description
+     "Parametric time warping aligns patterns.  It aims to put corresponding
+features at the same locations.  The algorithm searches for an optimal polynomial
+describing the warping.  It is possible to align one sample to a reference, several
+samples to the same reference, or several samples to several references.  One can
+choose between calculating individual warpings, or one global warping for a set
+of samples and one reference.  Two optimization criteria are implemented: @acronym{
+RMS, Root Mean Square} error and @acronym{WCC, Weighted Cross Correlation}.  Both
+warping of peak profiles and of peak lists are supported.")
+    (license license:gpl2+)))
+
 (define-public r-compare
   (package
     (name "r-compare")
-- 
2.38.1