Rshiny app author: ALicja Wolny-Dominiak, phd
The Shiny application
Sentiment analysis dashboard using tidytext R text mining shows how to work with text using
tidytext package developed by (Silge and Robinson, 2016). The theory and examples are prestented in the book Text mining with R. Authors arguee, that using tidy data principles can make many text mining tasks easier, more effective, and consistent with tools already in wide use.
This technique applied for the sentiment analysis treat text as data frames of individual words allows to manipulate, summarize, and visualize the characteristics of text easily. The analysis is based on the two lexicons containing sentimental words.
BING lexicon: negative positive NRC lexicon: trust fear negative sadness anger surprise positive disgust joy anticipation