r-emmeans: add new package (#23991)

var/spack/repos/builtin/packages/r-emmeans/package.py

@@ -0,0 +1,31 @@
+# Copyright 2013-2021 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack import *
+
+
+class REmmeans(RPackage):
+    """Estimated Marginal Means, aka Least-Squares Means
+
+    Obtain estimated marginal means (EMMs) for many linear, generalized
+    linear, and mixed models. Compute contrasts or linear functions of EMMs,
+    trends, and comparisons of slopes. Plots and other displays.
+    Least-squares means are discussed, and the term "estimated marginal means"
+    is suggested, in Searle, Speed, and Milliken (1980) Population marginal
+    means in the linear model: An alternative to least squares means, The
+    American Statistician 34(4), 216-221 <doi:10.1080/00031305.1980.10483031>.
+    """
+
+    homepage = "https://github.com/rvlenth/emmeans"
+    cran     = "emmeans"
+
+    version('1.6.0', sha256='201bb7b008dde94231ed60bcc6a32749442faaab4baeea99ad28b97c951b3c1e')
+
+    depends_on('r@3.5.0:', type=('build', 'run'))
+    depends_on('r-estimability@1.3:', type=('build', 'run'))
+    depends_on('r-numderiv', type=('build', 'run'))
+    depends_on('r-plyr', type=('build', 'run'))
+    depends_on('r-mvtnorm', type=('build', 'run'))
+    depends_on('r-xtable@1.8-2:', type=('build', 'run'))