View source: R/sentimentRules.R
ruleSentimentPolarity | R Documentation |
Sentiment score defined as the difference between positive and negative word counts divided by the sum of positive and negative words.
ruleSentimentPolarity(dtm, d)
dtm |
Document-term matrix |
d |
Dictionary of type |
Given the number of positive words P
and the number of
negative words N
. Then, the sentiment ratio is defined as
\frac{P-N}{P+N}
. Here, it uses the entries negativeWords
and
positiveWords
of the SentimentDictionaryBinary
.
Sentiment score in the range of -1 to 1.
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