RStudio for R Statistical Computing Cookbook

Chapter 6. Domain-specific Applications

In this chapter, we will cover the following topics:

• Dealing with regular expressions
• Analyzing PDF reports in a folder with the tm package
• Creating wordclouds with the wordcloud package
• Performing a Twitter sentiment analysis
• Detecting fraud in e-commerce orders with Benford's law
• Measuring customer retention using cohort analysis in R
• Making a recommendation engine
• Performing time series decomposition using the stl() function
• Exploring time series forecasting with forecast()
• Tracking stock movements using the quantmode package
• Optimizing portfolio composition and maximizing returns with the Portfolio Analytics package
• Forecasting the stock market

Introduction

I have to be honest: one of the things I love the most about ...