The codalm R package implements the methods as described in A Transformation-free Linear Regression for Compositional Outcomes and Predictors (Fiksel, Zeger, and Datta, 2020)

codalm is now available on CRAN and can be installed using

install.packages('codalm')

You can also install the development version of codalm for github using the remotes package.

remotes::install_github("jfiksel/codalm")

View the vignette (https://jfiksel.github.io/codalm/articles/codalm_quickstart.html) for examples of how to use the codalm package