uncombine: Ungroup a sentiment_by Object to the Sentence Level
Description
Ungroup a sentiment_by object, stretching to the element_id and
sentence_id levels.
Value
Returns a data.table with grouping variables plus:
- element_id - The id number of the original vector passed to
sentiment
- word_count - Word count
summed by grouping variable
- sd - Standard deviation (
sd) of the sentiment/polarity score by grouping variable
- ave_sentiment - Sentiment/polarity score
mean average by grouping variable