I use python 3.6 and i want to make sentiment analysis but i have an error in nltk.metrics package?

Question

i write the code as here :

    print ('pos precision:', nltk.metrics.precision(refsets['pos'], 
    testsets['pos']))
    print ('pos recall:', nltk.metrics.recall(refsets['pos'], 
    testsets['pos']))

and the output as here :

   line 35, in evaluate_classifier
   print ('pos precision:', nltk.metrics.precision(refsets['pos'], 
   testsets['pos']))
   AttributeError: module 'nltk.translate.metrics' has no attribute 
  'precision'

How can i solve this error ?

Answer 1

No big deal, just not calling the correct method.

Try: nltk.metrics.scores.precision(reference, test)

http://www.nltk.org/api/nltk.metrics.html

ctrl+f for "precision" will get you to documentation

Corrected code: print('pos precision:', nltk.metrics.scores.precision(refsets['pos'],testsets['pos'])) print('pos recall:', nltk.metrics.scores.recall(refsets['pos'],testsets['pos']))