An R package for one-way statistical analyses.
There are also other nice alternatives such as agricolae,
car,
onewaytests,
and other friends.
You can install the package from CRAN with:
install.packages("oneway")or the development version from GitHub with:
if (!require("pak")) install.packages("pak")
pak::pak("P10911004-NPUST/oneway")pairwise_comparison(O_O_O, val ~ grp)