Working with Data Files

Before you can begin any statistical analysis, you will need to learn to work with external data files so that you can import your data. R is able to read the comma-separated values (CSV), tab-delimited, and data interchange format (DIF) file formats, which are some of the standard file formats commonly used to transfer data between statistical and database packages.  With the help of an add-on package called foreign, it is possible to import a wider range of file types.

Whether you have personally recorded your data on paper or in a spreadsheet, or received a data file from someone else, this chapter will explain ...

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