fixed float bug in grammar and spelling feedback

feature_extractor.py

@@ -160,9 +160,8 @@ class FeatureExtractor(object):
 
     def gen_feedback(self, e_set, features=None):
         set_grammar=self._get_grammar_errors(e_set._pos,e_set._text,e_set._tokens)
-        set_grammar_per_character=[set_grammar[m]/len(e_set._text[m]) for m in xrange(0,len(e_set._text))]
-        set_spell_errors_per_character=[e_set._spelling_errors[m]/len(e_set._text[m]) for m in xrange(0,len(e_set._text))]
-        e_set._spelling_errors
+        set_grammar_per_character=[set_grammar[m]/float(len(e_set._text[m])) for m in xrange(0,len(e_set._text))]
+        set_spell_errors_per_character=[e_set._spelling_errors[m]/float(len(e_set._text[m])) for m in xrange(0,len(e_set._text))]
         all_feedback=[]
         for m in xrange(0,len(e_set._text)):
             individual_feedback=[]

tmpfile

-in order to replicate this experiment , i would need to know additional information such as the four different samples that they used because i could have choosen metal , carbboard and many other sample materials that they didn t use and would get different results . also i would also need to know the amount of vinegar to pour because this can caute a major change . lastly , they might want to tell where to sit the samples while they dry for minutes because if they are sitting in room temp . or by a light source makes a difference too .
+this is a well written sentence with impeccable grammar . read this and weep .
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