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watson

Fitting and Simulating Mixtures of Watson Distributions

v1.0.0 · Jan 17, 2026 · GPL-3

Description

Tools for fitting and simulating mixtures of Watson distributions. The package is described in Sablica, Hornik and Leydold (2026) <doi:10.18637/jss.v115.i04>. The random sampling scheme of the package offers two sampling algorithms that are based of the results of Sablica, Hornik and Leydold (2022) <doi:10.1080/10618600.2024.2416521>. What is more, the package offers a smart tool to combine these two methods, and based on the selected parameters, it approximates the relative sampling speed for both methods and picks the faster one. In addition, the package offers a fitting function for the mixtures of Watson distribution, that uses the expectation-maximization (EM) algorithm. Special features are the possibility to use multiple variants of the E-step and M-step, sparse matrices for the data representation and state of the art methods for numerical evaluation of needed special functions using the results of Sablica and Hornik (2022) <doi:10.1090/mcom/3690> and Sablica and Hornik (2024) <doi:10.1016/j.jmaa.2024.128262>.

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r-devel-macos-arm64 OK
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r-oldrel-windows-x86_64 OK
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OK r-devel-linux-x86_64-debian-clang

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OK r-devel-linux-x86_64-debian-gcc

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OK r-devel-linux-x86_64-fedora-clang

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OK r-devel-linux-x86_64-fedora-gcc

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OK r-devel-macos-arm64

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OK r-devel-windows-x86_64

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NOTE r-oldrel-macos-arm64

installed package size

  installed size is  5.7Mb
  sub-directories of 1Mb or more:
    libs   5.6Mb
NOTE r-oldrel-macos-x86_64

installed package size

  installed size is  6.0Mb
  sub-directories of 1Mb or more:
    libs   5.8Mb
OK r-oldrel-windows-x86_64

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OK r-patched-linux-x86_64

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OK r-release-linux-x86_64

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OK r-release-macos-arm64

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OK r-release-macos-x86_64

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OK r-release-windows-x86_64

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Check History

NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 9, 2026
NOTE r-oldrel-macos-arm64

installed package size

  installed size is  5.7Mb
  sub-directories of 1Mb or more:
    libs   5.6Mb
NOTE r-oldrel-macos-x86_64

installed package size

  installed size is  6.0Mb
  sub-directories of 1Mb or more:
    libs   5.8Mb

Dependency Network

Dependencies Reverse dependencies Rcpp Tinflex watson

Version History

new 1.0.0 Mar 9, 2026