30 lines
1.3 KiB
Python
30 lines
1.3 KiB
Python
# Copyright 2013-2024 Lawrence Livermore National Security, LLC and other
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# Spack Project Developers. See the top-level COPYRIGHT file for details.
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#
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# SPDX-License-Identifier: (Apache-2.0 OR MIT)
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# See the Spack documentation for more information on packaging.
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from spack.package import *
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class RXnomial(RPackage):
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"""Exact Goodness-of-Fit Test for Multinomial Data with Fixed
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Probabilities.
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Tests whether a set of counts fit a given expected ratio. For example, a
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genetic cross might be expected to produce four types in the relative
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frequencies of 9:3:3:1. To see whether a set of observed counts fits this
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expectation, one can examine all possible outcomes with xmulti() or a
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random sample of them with xmonte() and find the probability of an
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observation deviating from the expectation by at least as much as the
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observed. As a measure of deviation from the expected, one can use the
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log-likelihood ratio, the multinomial probability, or the classic
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chi-square statistic. A histogram of the test statistic can also be plotted
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and compared with the asymptotic curve."""
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cran = "XNomial"
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version("1.0.4", sha256="e6237f79d96f02bb30af1cf055ae9f70541abba34ce045a9d4359b5304189dd7")
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depends_on("r@2.14:", type=("build", "run"))
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