擅长:python、mysql、java
<p>在if、else语句中,只返回1个变量。您可以从如下函数中返回两个变量:</p>
<pre><code>return var1, var2
</code></pre>
<p>因此,您的函数可以写入如下内容:</p>
<pre><code>def build_feature_matrix_S(documents):
# part 1:
vectorizer_freq = CountVectorizer(tokenizer = tokenize_lemmatize_spacy, binary=False, min_df=5, ngram_range=(1, 2))
feature_matrix_freq = vectorizer_freq.fit_transform(documents)
feature_freq = pd.DataFrame(feature_matrix_freq.todense(), columns = vectorizer_freq.get_feature_names())
# part 2:
vectorizer_tfidf = TfidfVectorizer(tokenizer = tokenize_lemmatize_spacy, min_df=5, ngram_range=(1, 2))
feature_matrix_tfidf = vectorizer_tfidf.fit_transform(documents)
feature_tfidf = pd.DataFrame(feature_matrix_tfidf.todense(), columns = vectorizer_tfidf.get_feature_names())
return feature_freq, feature_tfidf
</code></pre>