Analyzing Baseball Data with R

12Exploring Fielding Metrics with Contributed R Packages

Contents

1. 12.1 Introduction
2. 12.2 A Motivating Example: Comparing Fielding Metrics
   1. 12.2.1 Introduction
   2. 12.2.2 The fielding metrics
   3. 12.2.3 Reading an Excel spreadsheet (XLConnect)
   4. 12.2.4 Summarizing multiple columns (doBy)
   5. 12.2.5 Finding the most similar string (stringdist)
   6. 12.2.6 Applying a function on multiple columns (plyr)
   7. 12.2.7 Weighted correlations (weights)
   8. 12.2.8 Displaying correlation matrices (ellipse)
   9. 12.2.9 Evaluating the fielding metrics (psych)
3. 12.3 Comparing Two Shortstops
   1. 12.3.1 Reshaping the data (reshape2)
   2. 12.3.2 Plotting the data (ggplot2 and directlabels)
4. 12.4 Further Reading
5. 12.5 Exercises

12.1 Introduction

R packages have been introduced in Chapter 2 of this book. Here the evaluation ...