R dummies

Part IVMaking the Data TalkIn this part . . .R has earned its status as one of the leading statistical packages for a reason.Statisticians use it to extract meaningful relationships from sometimes gigabytes ofavailable data in a variety of ways. For them, R is often the right tool to convert abunch of numbers into an interesting story.In this part, you meet a small selection of tools that allow you to tell the storyof your data. You get to subset, combine, and restructure your data; summarize itin meaningful ways; and use the power of statistics to test your hypotheses on thedata at hand.Because thousands of people continue to develop new statistical techniquesand write new R packages, this section covers only a tiny spectrum of possibleanalyses. But you do get insight into how you formulate tests and what you can dowith the resulting objects.