This book offers many examples of how these tools can be used to bring in data from almost any source, clean it, transform it, merge it with other data, and get it into the kind of shape required to produce reliable models and informative reports. It is intended for use with other documentation resources that go into more detail about specific features but have fewer extended examples. Most of the examples shown in this book are designed as hands-on exercises that we can perform ourselves. The CD-ROM that comes with the book contains sample data, command files, and scripts.

 

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