
Chapter 10
Sentiment Analysis of Stock Market
Behavior from Twitter Using the R Tool
Nuno Oliveira
ALGORITMI Research Centre, University of Minho, Guimar˜aes, Portugal
Paulo Cortez
ALGORITMI Research Centre/Department of Information Systems, University of Minho,
Guimar˜aes, Portugal
Nelson Areal
Department of Management, University of Minho, Braga, Portugal
Abstract . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
10.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .