二:Python编程练习:英文文本的词频统计
1.准备文本文件
2.读文件 预处理:大小写,标点符号,停用词,分词,统计每个单词出现的次数 ,按词频大小排序
def get_text(file_name): with open(file_name,\'r\',encoding=\'utf-8\') as fr: text = fr.read() text = text.lower()#注意会有大小写之分,这里不区分大小写 delete_ch = [\'\\n\',\':\',\'!\',\'?\',\',\',\'.\']#要删除的标点 for ch in delete_ch: text = text.replace(ch,\' \') return text file_name = \'test.txt\'#要处理的文件 text = get_text(file_name) text = text.split()#注意!不能有split(\' \') count_dict = {} #统计每个单词的个数 for i in text: count_dict[i] = count_dict.get(i,0) + 1 #转化成列表的形式 count_dict = list(count_dict.items()) count_dict.sort(key = lambda x:x[1], reverse = True) for i in range(10): word,count = count_dict[i] print(word,count)
展示结果
来源:https://www.cnblogs.com/201906120004chaijun/p/15973100.html
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