Let's talk about our feelings

Sentiment Analysis in R

Ted Kwartler

Data Dude

Definition: sentiment analysis

Sentiment analysis is the process of extracting an author’s emotional intent from text

Why is sentiment analysis important?

Data formats in this course

Bag of Words DTM & TDM

Tidy Tribble...errr...Tibble

Chapter 1: qdap's polarity() function

library(qdap)

polarity(text$column)

polarity(text$column, text$factor_or_author_grouping)

Chapter 2: tidytext inner joins

library(tidytext)

inner_join(sentiment_words, some_text_to_be_analyzed)

Chapter 3: Visualizing sentiment

htmlwidgets.org radar chart

ggplot2 line chart

Chapter 4: Case study on property rentals

Let's practice!

Sentiment Analysis in R