Add the ability to get the raw scores

Author: Sentimentron

README.md

@@ -19,7 +19,10 @@ A quick way to get "good enough" sentiment analysis into your applications, this
 
     var dracula = require('dracula-sentiment');
     var text = "xoxo cant wait";
+    // Output a 'positive', 'negative', or 'neutral' label
     console.log(text, dracula.analyze(text));
+    // To output a [negative, neutral, positive] float array
+    console.log(text, dracula.score(text));
 
 For best performance and accuracy, remove any non-ascii characters by converting them to their closest equivalents via [`unidecode`](https://www.npmjs.com/package/unidecode) or something similar, and feed it sentence-sized chunks of text. 
 

dracula.js

@@ -1,5 +1,5 @@
 // This is the core function, used by everything
-function dracula(content) {
+function draculaScores(content) {
   // Tokenize
   var tokens = draculaTokenize(content);
   // Create embeddings
@@ -66,6 +66,11 @@ function dracula(content) {
 
   // Output
   var probs = draculaSoftmax([finalPool]);
-  output = determineLabels(probs);
+  return probs;
+}
+
+function dracula(content) {
+  var probs = draculaScores(content);
+  var output = determineLabels(probs);
   return output.join(', ');
 }

index.js

@@ -25,5 +25,8 @@ eval(fs.readFileSync(path.join(__dirname, 'dracula.js'))+'');
  module.exports = {
     analyze: function(string) {
         return dracula(string);
+    },
+    score: function(string) {
+        return draculaScores(string)[0];
     }
 }

test/index.js

@@ -1,6 +1,7 @@
 var should = require('chai').should(),
     dracula = require('../index'),
-    analyze = dracula.analyze;
+    analyze = dracula.analyze,
+    score = dracula.score
 
 describe('#analyze', function() {
     it('Should think "terror" is bad news', function() {
@@ -15,3 +16,11 @@ describe('#analyze', function() {
         analyze('he\'s been saying really negative things about me').should.equal("negative");
     });
 });
+
+describe('#score', function() {
+    it('Should think "terrorism" is generally negative', function() {
+        var scores = score("terrorism");
+        scores[0].should.above(scores[1]);
+        scores[0].should.above(scores[2]);
+    });
+});