利用Python做一个词频统计 GitHub地址:FightingBob [Give me a star , thanks.] 词频统计 对纯英语的文本文件[Eg: 瓦尔登湖(英文版).txt]的英文单词出现的次数进行统计,并记录起来 代码实现 import string from os import path with open('瓦尔登湖(英文版).txt','rb') as text1: words = [word.strip(string.punctuation).lower() for
-cacheArchive也是从hdfs上进分发,但是分发文件是一个压缩包,压缩包内可能会包含多层目录多个文件 1.The_Man_of_Property.txt文件如下(将其上传至hdfs上) hadoop fs -put The_Man_of_Property.txt /mapreduce Preface “The Forsyte Saga” was the title originally destined for that part of it which is called “The
-cacheFile 分发,文件事先上传至Hdfs上,分发的是一个文件 1.找一篇文章The_Man_of_Property.txt: He was proud of him! He could not but feel that in similar circumstances he himself would have been tempted to enlarge his replies, but his instinct told him that this taciturnity wa
统计某几个词在文章出现的次数 -file参数分发,是从客户端分发到各个执行mapreduce端的机器上 1.找一篇文章The_Man_of_Property.txt如下: He was proud of him! He could not but feel that in similar circumstances he himself would have been tempted to enlarge his replies, but his instinct told him that t
统计工作中几个常用用法在python统计函数库scipy.stats的使用范例. 正态分布以正态分布的常见需求为例了解scipy.stats的基本使用方法. 1.生成服从指定分布的随机数 norm.rvs通过loc和scale参数可以指定随机变量的偏移和缩放参数,这里对应的是正态分布的期望和标准差.size得到随机数数组的形状参数.(也可以使用np.random.normal(loc=0.0, scale=1.0, size=None)) In [4]: import numpy as np I
#瓦登尔湖词频统计: import string path = 'D:/python3/Walden.txt' with open(path,'r',encoding= 'utf-8') as text: words = [raw_word.strip(string.punctuation).lower() for raw_word in text.read().split()] words_index = set(words) counts_dict = {index:words.count(
一.字符串操作: 解析身份证号:生日.性别.出生地等. 凯撒密码编码与解码 网址观察与批量生成 2.凯撒密码编码与解码 凯撒加密法的替换方法是通过排列明文和密文字母表,密文字母表示通过将明文字母表向左或向右移动一个固定数目的位置.例如,当偏移量是左移3的时候(解密时的密钥就是3),所有的字母A将被替换成D,B变成E,以此类推X将变成A,Y变成B,Z变成C.由此可见,位数就是凯撒密码加密和解密的密钥. def change(c,i): c = c.lower() num = ord(c) if n
# 使用Python进行词频统计 mytext = """Background Industrial Light & Magic (ILM) was started by filmmaker George Lucas, . ILM has won numerous Academy Awards for Best Visual Effects, not to mention a string of Clio awards for its work on televisi