#### Open https://cran.r-project.org/web/packages/data.table/index.html

# Open RStudio - New Project, R package
# Delete R/hello.R, man/hello.md

# Show .Rbuildignore, .gitignore

# Make git commit

# Create `polypack` on github

# RStudio: Git tab -> Gear -> New termainl -> paste commands


# Copy over files

# Modify description
# - Author -> Authors@R, `help(person)`

library(devtools)

use_gpl_license()
# GPL says can be used in other open source software only
# other options: MIT (extremely permissive, eg can be used for
#                CC0 (no license at all)

document()

# 1. RoxygenNote
# 2. SHow man files
#   - Show multiple functions in one document
# 3. Fix bugs
# 4. NAMESPACE needs to be deleted, document() re-run
# 5. Show namespace

################# COMMIT!
# (Add .DS_Store to gitignore)

use_testthat()

# Show modifications to DESCRIPTION

# Move over testing code, generate at least two files

# Click test button, fix issue with `expect_is`

# COMMIT!

### Adding a data-set
# Make a file in data-raw/polydat.R

polydat <- mtcars # put "real" data here!
use_data(polydat, overwrite = TRUE)

# Show data/ folder, loading

# Create R/data.R

#' @title Polynomial data
#' @format Some dataset
#' \describe{
#'   \item{x}{First column}
#'   \item{y}{Second column}
#' }
"polydat"

# Re-run document, COMMIT

use_vignette("polypack", "Using Polypack")

# Do some editing

build_rmd("vignettes/polypack.Rmd")
# Do this instead of manual, to use developer version rather than installed.

# Check!