我正在尝试从 CNBC 网站获取非常基本的情绪分析。我把这段代码放在一起,效果很好。from bs4 import BeautifulSoupimport urllib.requestfrom pandas import DataFrameresp = urllib.request.urlopen("https://www.cnbc.com/finance/")soup = BeautifulSoup(resp, from_encoding=resp.info().get_param('charset')) substring = 'https://www.cnbc.com/'df = ['review']for link in soup.find_all('a', href=True): print(link['href']) if (link['href'].find(substring) == 0): # append df.append(link['href'])#print(link['href'])#list(df)# convert list to data framedf = DataFrame(df)#type(df)#list(df)# add column namedf.columns = ['review']# clean updf['review'] = df['review'].str.replace('\d+', '')# Get rid of special charactersdf['review'] = df['review'].str.replace(r'[^\w\s]+', '')from nltk.sentiment.vader import SentimentIntensityAnalyzersid = SentimentIntensityAnalyzer()df['sentiment'] = df['review'].apply(lambda x: sid.polarity_scores(x))def convert(x): if x < 0: return "negative" elif x > .2: return "positive" else: return "neutral"df['result'] = df['sentiment'].apply(lambda x:convert(x['compound']))df['result']当我运行上面的代码时,我得到了正面和负面的信息,但这些并没有映射到原始的“评论”。如何在数据框中、每个链接的语言旁边显示每种情绪?谢谢!
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