[bug#44277] [PATCH v2 1/3] gnu: Add r-decon.

[Aniket Patil <aniket112.patil@gmail.com>]

* gnu/packages/cran.scm (r-decon): New variable.
---
 gnu/packages/cran.scm | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index fea560f7a1..ce2d860135 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -24628,3 +24628,39 @@ orthogonal coordinate systems: cartesian, polar, spherical, cylindrical,
 parabolic or user defined by custom scale factors.")
     (license license:gpl3)))
 
+(define-public r-decon
+  (package
+    (name "r-decon")
+    (version "1.2-4")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (cran-uri "decon" version))
+        (sha256
+          (base32
+            "1v4l0xq29rm8mks354g40g9jxn0didzlxg3g7z08m0gvj29zdj7s"))))
+    (properties `((upstream-name . "decon")))
+    (build-system r-build-system)
+    (native-inputs
+     `(("gfortran" ,gfortran)))
+    (home-page
+      "https://cran.r-project.org/web/packages/decon")
+    (synopsis "Deconvolution Estimation in Measurement Error Models")
+    (description
+      "This package contains a collection of functions to deal with 
+nonparametric measurement error problems using deconvolution 
+kernel methods.  We focus two measurement error models in the 
+package: (1) an additive measurement error model, where the 
+goal is to estimate the density or distribution function from 
+contaminated data; (2) nonparametric regression model with 
+errors-in-variables.  The R functions allow the measurement errors 
+to be either homoscedastic or heteroscedastic.  To make the 
+deconvolution estimators computationally more efficient in R, 
+we adapt the \"Fast Fourier Transform\" (FFT) algorithm for 
+density estimation with error-free data to the deconvolution 
+kernel estimation.  Several methods for the selection of the 
+data-driven smoothing parameter are also provided in the package.  
+See details in: Wang, X.F.  and Wang, B. (2011).  Deconvolution 
+estimation in measurement error models: The R package decon.  
+Journal of Statistical Software, 39(10), 1-24.")
+    (license license:gpl3+)))
-- 
2.28.0