# ruleSentimentPolarity: Sentiment polarity score In SentimentAnalysis: Dictionary-Based Sentiment Analysis

## Description

Sentiment score defined as the difference between positive and negative word counts divided by the sum of positive and negative words.

## Usage

 1 ruleSentimentPolarity(dtm, d) 

## Arguments

 dtm Document-term matrix d Dictionary of type SentimentDictionaryBinary

## Details

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.

## Value

Sentiment score in the range of -1 to 1.

SentimentAnalysis documentation built on April 10, 2018, 1:03 a.m.