Either install the stable version from CRAN or install the latest development version from GitHub.
install.packages(pkgs="RAQSAPI", dependencies = TRUE )To install the development version of RAQSAPI, first if not already installed, install the remotes package and its dependencies. Then run the following in a R environment.
remotes::install_github(repo = "USEPA/raqsapi",
dependencies = TRUE,
upgrade = "always",
build = TRUE,
#optional, set TRUE if the manual is desired,
#requires pandoc
build_manual = FALSE,
build_vignettes = TRUE
)