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betafunctions: Functions for Working with Two- And Four-Parameter Beta Probability Distributions and Psychometric Analysis of Classifications

Package providing a number of functions for working with Two- and Four-parameter Beta and closely related distributions (i.e., the Gamma- Binomial-, and Beta-Binomial distributions). Includes, among other things: - d/p/q/r functions for Four-Parameter Beta distributions and Generalized "Binomial" (continuous) distributions, and d/p/r- functions for Beta- Binomial distributions. - d/p/q/r functions for Two- and Four-Parameter Beta distributions parameterized in terms of their means and variances rather than their shape-parameters. - Moment generating functions for Binomial distributions, Beta-Binomial distributions, and observed value distributions. - Functions for estimating classification accuracy and consistency, making use of the Classical Test-Theory based 'Livingston and Lewis' (L&L) and 'Hanson and Brennan' approaches. A shiny app is available, providing a GUI for the L&L approach when used for binary classifications. For url to the app, see documentation for the LL.CA() function. Livingston and Lewis (1995) <doi:10.1111/j.1745-3984.1995.tb00462.x>. Lord (1965) <doi:10.1007/BF02289490>. Hanson (1991) <https://files.eric.ed.gov/fulltext/ED344945.pdf>.

Version: 1.9.0
Published: 2024-03-06
DOI: 10.32614/CRAN.package.betafunctions
Author: Haakon Eidem Haakstad
Maintainer: Haakon Eidem Haakstad <h.e.haakstad at gmail.com>
License: CC0
NeedsCompilation: no
Materials: README NEWS
In views: Distributions, Psychometrics
CRAN checks: betafunctions results

Documentation:

Reference manual: betafunctions.pdf

Downloads:

Package source: betafunctions_1.9.0.tar.gz
Windows binaries: r-devel: betafunctions_1.9.0.zip, r-release: betafunctions_1.9.0.zip, r-oldrel: betafunctions_1.9.0.zip
macOS binaries: r-release (arm64): betafunctions_1.9.0.tgz, r-oldrel (arm64): betafunctions_1.9.0.tgz, r-release (x86_64): betafunctions_1.9.0.tgz, r-oldrel (x86_64): betafunctions_1.9.0.tgz
Old sources: betafunctions archive

Reverse dependencies:

Reverse imports: IRTest

Linking:

Please use the canonical form https://CRAN.R-project.org/package=betafunctions to link to this page.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.