我使用 python 3.6,我想进行情绪分析,但我在 nltk.metrics 包中有错误?

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

我在这里写代码:

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

输出如下:

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

我该如何解决这个错误?

没什么大不了的,只是没有调用正确的方法。

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

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

ctrl+f for "precision" 将带您进入文档

更正后的代码: print('pos precision:', nltk.metrics.scores.precision(refsets['pos'],testsets['pos'])) print('pos recall:', nltk.metrics.scores.recall(refsets['pos'],testsets['pos']))