Class: VaderSentimentRuby::PunctuationEmphasisAmplifier

Inherits:

Object

• Object
• VaderSentimentRuby::PunctuationEmphasisAmplifier

Defined in:

lib/vader_sentiment_ruby/punctuation_emphasis_amplifier.rb

Overview

Adds emphasis factor from exclamation points and question marks

Constant Summary

EXCLAMATION_MARK =

'!'

QUESTION_MARK =

'?'

EXCLAMATION_MARK_RATING_INCREASE =

Empirically derived mean sentiment intensity rating increases for exclamation points and question marks

0.292

QUESTION_MARK_RATING_INCREASE =

0.18

Instance Method Summary

• #call ⇒ Float, Integer

  Emphasis factor.

• #initialize(text) ⇒ PunctuationEmphasisAmplifier constructor

  A new instance of PunctuationEmphasisAmplifier.

Constructor Details

#initialize(text) ⇒ PunctuationEmphasisAmplifier

Returns a new instance of PunctuationEmphasisAmplifier.

Parameters:

• text (String)

# File 'lib/vader_sentiment_ruby/punctuation_emphasis_amplifier.rb', line 13

def initialize(text)
  @text_array = text.split('')
end

Instance Method Details

#call ⇒ Float, Integer

Returns Emphasis factor.

Returns:

• (Float, Integer) —

  Emphasis factor

# File 'lib/vader_sentiment_ruby/punctuation_emphasis_amplifier.rb', line 18

def call
  (amplify_exclamation_points + amplify_question_marks).round(3)
end