gnu: Add r-cmprsk.

* gnu/packages/cran.scm (r-cmprsk): New variable.

gnu/packages/cran.scm

@@ -10197,3 +10197,30 @@ (define-public r-protviz
 is used mainly for prototyping, teaching, and having fun with proteomics data.
 But it can also be used to do data analysis for small scale data sets.")
     (license license:gpl3)))
+
+(define-public r-cmprsk
+  (package
+    (name "r-cmprsk")
+    (version "2.2-7")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (cran-uri "cmprsk" version))
+       (sha256
+        (base32
+         "1imr3wpnj4g57n2x4ryahl4lk8lvq9y2r7319zv3k82mznha8bcm"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-survival" ,r-survival)))
+    (native-inputs
+     `(("gfortran" ,gfortran)))
+    (home-page "https://cran.r-project.org/web/packages/cmprsk")
+    (synopsis "Subdistribution analysis of competing risks")
+    (description
+     "This package provides tool for estimation, testing and regression
+modeling of subdistribution functions in competing risks, as described in
+Gray (1988), A class of K-sample tests for comparing the cumulative incidence
+of a competing risk, Ann. Stat. 16:1141-1154, and Fine JP and Gray RJ (1999),
+A proportional hazards model for the subdistribution of a competing risk,
+JASA, 94:496-509.")
+    (license license:gpl2+)))