What You Will LearnHow This Book Is OrganizedWhat You Won’t LearnBig DataPython, Julia, and FriendsNonrectangular DataHypothesis ConfirmationPrerequisitesRRStudioThe TidyverseOther PackagesRunning R CodeGetting Help and Learning MoreAcknowledgmentsOnline VersionConventions Used in This BookUsing Code ExamplesO’Reilly Online LearningHow to Contact Us