Overview Before building S3 classes Packaging 1 Packaging 2 Packaging 3 Wrap-upBuilding R Packages An IntroductionDavid Diez david@openintro.orgBiostatistics, Harvard SPHOverview Before building S3 classes Packaging 1 Packaging 2 Packaging 3 Wrap-upWhy build an R package?AccessibleFunctions and objects contained in a package and installed on a machine can be easily loaded: > library(myPackage)Many R users develop their own functions that they use regularlyPutting code into a package can be worth