Getting Data into and out of R
In This Chapter
Exploring the various ways of getting data into R
Looking at how to save your results
Understanding how files are organized in R
Every data-processing or analysis problem involves at least three broad steps: input, process, and output. In this chapter, we cover the input and output steps.
Specifically, we look at some of the options you have for importing your data into R, including using the Clipboard, reading data from comma-separated value (CSV) files, and interfacing with spreadsheets like Excel. We also give you some pointers on importing data from commercial statistical software such as SPSS. Next, we give you some options for exporting your data from R. Finally, you manipulate files and folders on your computer.
Getting Data into R
You have several options for importing your data into R, and we cover those options in this section.
Because spreadsheets are so widely used, the bulk of this chapter looks at the different options for importing data originating in spreadsheets. To illustrate the techniques in this chapter, we use a small spreadsheet table with information about the first ten elements of the periodic table, ...