The package can be installed directly from GitHub using devtools or the remotes package with the following command:

remotes::install_github("lebebr01/mars")

To ensure that the vignettes are build, add the build_vignettes argument:

remotes::install_github("lebebr01/mars",
                        build_vignettes = TRUE)

You can then explore the vignettes which give the basic functionality of the package. The two vignettes can be accessed with the following code:

vignette(package = 'mars')