lecture-12 v18.3.0

• Add lab replication file

lecture-12 v18.2.0

• Initial repo setup:

  • Add .github/ directory with community documents
  • Add references/ directory with standard files
  • Add README.md with placeholder language
  • Add LICENSE
  • Add .gitignore and .Rbuildignore
  • Add .travis.yml and appveyor.yml, but CI is not turned on for this repo
  • Add DESCRIPTION for eventual CI testing
  • Add .Rpoj file

• Update .github/ documents to latest community standards

• Add remotes and usethis packages as dependencies

• Add source and pdf versions of handouts

• Add extra code demonstrating plot generation

• Add lab assignment instructions