Book Image

Data Analysis Using SQL and Excel - Second Edition

By : Gordon S. S. Linoff
Book Image

Data Analysis Using SQL and Excel - Second Edition

By: Gordon S. S. Linoff

Overview of this book

Data Analysis Using SQL and Excel, 2nd Edition shows you how to leverage the two most popular tools for data query and analysis—SQL and Excel—to perform sophisticated data analysis without the need for complex and expensive data mining tools. Written by a leading expert on business data mining, this book shows you how to extract useful business information from relational databases. You'll learn the fundamental techniques before moving into the "where" and "why" of each analysis, and then learn how to design and perform these analyses using SQL and Excel. Examples include SQL and Excel code, and the appendix shows how non-standard constructs are implemented in other major databases, including Oracle and IBM DB2/UDB. The companion website includes datasets and Excel spreadsheets, and the book provides hints, warnings, and technical asides to help you every step of the way. Data Analysis Using SQL and Excel, 2nd Edition shows you how to perform a wide range of sophisticated analyses using these simple tools, sparing you the significant expense of proprietary data mining tools like SAS.
Table of Contents (18 chapters)
Free Chapter
1
Foreword
17
EULA

Mapping in Excel

Maps are very useful when working with geographic data. This section discusses the issue of creating maps in Excel. The short answer is that if mapping is important, Excel is not the right tool, at least without add-ins or extensions specifically for mapping. However, the longer answer is that basic charting in Excel can get you started.

Why Create Maps?

The purpose of mapping is to visualize trends and data, making it easier to understand where things are and are not happening. The zip code maps seen earlier in the chapter (for solar power and wealthy zip codes) contain tens of thousands of zip codes in a format readily understandable by most people. A map summarizes information at different levels—showing differences across regions, between urban and rural areas, and for particular geographic areas. And this is just from rudimentary zip code maps.

Beyond this, there are several things that mapping software should do. Mapping software should be able to show different...