devtools functions

devtools::create() # create a new package with the required folders

devtools::document() # generate documentation for the individual functions in the package

devtools::use_vignette() # create a vignette for the package if devtools < 2.1.0

usethat::use_vignette("introduction") # use "usethat" if devtools > 2.1.0

devtools::install_github("yourusername/myfirstpackage")

Testing testhat

Website pkgdown