7. Exploratory Data Analysis

  1. James R. Thompson

Published Online: 29 NOV 2011

DOI: 10.1002/9781118109656.ch7

Empirical Model Building: Data, Models, and Reality, Second Edition

Empirical Model Building: Data, Models, and Reality, Second Edition

How to Cite

Thompson, J. R. (2011) Exploratory Data Analysis, in Empirical Model Building: Data, Models, and Reality, Second Edition, John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9781118109656.ch7

Publication History

  1. Published Online: 29 NOV 2011
  2. Published Print: 24 OCT 2011

ISBN Information

Print ISBN: 9780470467039

Online ISBN: 9781118109656

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Keywords:

  • exploratory data analysis (EDA);
  • five figure summary;
  • smoothing;
  • stem and leaf plot;
  • Tukey's box plot

Summary

The concept of exploratory data analysis (EDA) is generally dismissive of models. In order to understand the highly anti-modeling paradigm of EDA, we need to model EDA itself. In this chapter, the author presents some personal observations which capture much of the essence of EDA. The chapter discusses 3R smoothing, where the expression “3R” means that the median smooth has been applied until no further changes were observed. It also discusses the concept of stem and leaf plot by providing an example of a small town mayor wanting to get some notion of the income distributions in his town. By using the data of random sample of yearly incomes of the example provided, the five figure summary and Tukey's box plot are discussed in the chapter.

Controlled Vocabulary Terms

box plot