varequal

An R package for testing whether group variances are equal.

Get started

There are also other nice alternatives such as vartest and other friends.

Installation

You can install the package from CRAN with:

install.packages("varequal")

or the development version from GitHub with:

if (!require("pak")) install.packages("pak")
# pak::pak("P10911004-NPUST/varequal")
install.packages("varequal", repos = c('https://p10911004-npust.r-universe.dev', 'https://cloud.r-project.org'))

Quick start

is_var_equal(roGFP[[1]], ro ~ grp)

TODO

• Ansari-Bradley test
  • Ansari & Bradley, 1960
• Moses test
  • Moses, 1963
• Miller test
  • Miller, 1968
• Bartlett's test
• Brown-Forsythe test
• Cochran G test
  • Lam, 2010
• Fligner-Killeen test
  • Fligner & Killeen, 1974
• Hartley's test
  • Frey, 2010
• Levene's test