随笔分类 -  python 数据分析

pandas 实现rfm模型
摘要：第三版 阅读全文
posted @ 2019-04-23 13:53 Erick-LONG 阅读(1031) 评论(0) 推荐(0)
批量提取图片主要3个颜色匹配中文名字并写入到excel设置对应颜色的背景
摘要：from gevent import monkey monkey.patch_all() import gevent from haishoku.haishoku import Haishoku import math from colorsys import rgb_to_hsv import os from collections import OrderedDict import pan... 阅读全文
posted @ 2018-08-08 20:19 Erick-LONG 阅读(1056) 评论(0) 推荐(0)
jieba文本分词，去除停用词，添加用户词
摘要：import jieba from collections import Counter from wordcloud import WordCloud import matplotlib.pyplot as plt from PIL import Image import numpy as np import jieba.analyse from pyquery import PyQuery ... 阅读全文
posted @ 2018-07-31 14:21 Erick-LONG 阅读(9663) 评论(0) 推荐(1)
pandas使用
摘要：上四分位数 quantile(0.75)下四分位数间距= 上四分位数-下四分位数k =1.5 形变 原始数据 < 上四分位数 + k *间距 异常值 原始数据 > 下四分位数 - k *间距 isnull()空置均值标准差均值最大最小值偏度 skew()峰度系数 kurt() 次数 value_co 阅读全文
posted @ 2018-05-15 19:18 Erick-LONG 阅读(151) 评论(0) 推荐(0)
networkx 学习
摘要：import networkx as nx import pylab import numpy as np #自定义网络 row=np.array([0,0,0,1,2,3,6]) col=np.array([1,2,3,4,5,6,7]) value=np.array([1,2,1,8,1,3,5]) print('生成一个空的有向图') G=nx.DiGraph() print('为这个... 阅读全文
posted @ 2018-02-24 16:39 Erick-LONG 阅读(220) 评论(0) 推荐(0)
排列组合公式
摘要：公式中A(n,m)为排列数公式，C(n,m)为组合数公式。 阅读全文
posted @ 2017-11-14 16:20 Erick-LONG 阅读(739) 评论(0) 推荐(0)
pandas 数据分析使用
摘要：https://github.com/Erick-LONG/data_analysis/blob/master/%E6%95%B0%E6%8D%AE%E5%88%86%E6%9E%90%20%E9%82%B1.ipynb 阅读全文
posted @ 2017-05-15 14:30 Erick-LONG 阅读(171) 评论(0) 推荐(0)
pandas 使用
摘要：ss = [['xx','m',22],['cc','w',33],['jj','w',44],['qq','m',11]] import pandas as pd df = pd.DataFrame(ss) df.columns=['name','gender','age'] phone = pd.Series([21000,18900,18000]) phone = pd.Series... 阅读全文
posted @ 2017-04-19 22:19 Erick-LONG 阅读(175) 评论(0) 推荐(0)
计算英文文章词频的两种方法
摘要：1 speech_text='xxx' 2 speech = speech_text.lower().split() 3 dic = {} 4 for word in speech: 5 if word not in dic: 6 dic[word]=1 7 else: 8 dic[word]+=1 9 import operat... 阅读全文
posted @ 2017-04-19 21:21 Erick-LONG 阅读(556) 评论(0) 推荐(0)
LOW版统计词频
摘要：import string path = 'waldnn' with open(path,'r') as text: words = [raw_word.strip(string.punctuation).lower() for raw_word in text.read().split()] words_index = set(words) counts_dict = ... 阅读全文
posted @ 2017-04-19 13:56 Erick-LONG 阅读(169) 评论(0) 推荐(0)
PYTHON 词云
摘要：1 #！/usr/bin/env python 2 # -*- coding:utf-8 -*- 3 import matplotlib.pyplot as plt 4 from wordcloud import WordCloud,STOPWORDS,ImageColorGenerator 5 import jieba 6 from scipy.misc import imrea... 阅读全文
posted @ 2017-04-18 21:59 Erick-LONG 阅读(459) 评论(0) 推荐(0)
利用python处理文档中各字段出现的次数并排序
摘要：1 import string 2 path = 'waldnn' 3 with open(path,'r') as text: 4 words = [raw_word.strip(string.punctuation).lower() for raw_word in text.read().split()] 5 words_index = set(words) 6 co... 阅读全文
posted @ 2017-03-10 19:23 Erick-LONG 阅读(1613) 评论(0) 推荐(0)