本文实例讲述了Python数据分析之双色球统计单个红和蓝球哪个比例高的方法。分享给大家供大家参考,具体如下:
统计单个红球和蓝球,哪个组合最多,显示前19组数据
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#!/usr/bin/python
# -*- coding:UTF-8 -*-
import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
import operator
df = pd.read_table( 'newdata.txt' ,header = None ,sep = ',' )
tdate = sorted (df.loc[:, 0 ])
# print tdate
h1 = df.loc[:, 1 : 7 : 6 ].values #取第一列红球和蓝球
# print h1
h2 = df.loc[:, 2 : 7 : 5 ].values #取第二列红球和蓝球
h3 = df.loc[:, 3 : 7 : 4 ].values
h4 = df.loc[:, 4 : 7 : 3 ].values
h5 = df.loc[:, 5 : 7 : 2 ].values
h6 = df.loc[:, 6 : 7 : 1 ].values
# tblue = df.loc[:,7]
#将上方切分的所有数据组合到一起
data = np.append(h1, h2, axis = 0 )
data = np.append(data, h3, axis = 0 )
data = np.append(data, h4, axis = 0 )
data = np.append(data, h5, axis = 0 )
data = np.append(data, h6, axis = 0 )
# print data
data1 = pd.DataFrame(data)
# print data1
#写入到一个文件中
data1.to_csv( 'hldata.csv' ,index = None ,header = None )
#读取文件,将组合进行统计并从大到小排序
f = open ( "hldata.csv" )
count_dict = {}
for line in f.readlines():
line = line.strip()
count = count_dict.setdefault(line, 0 )
count + = 1
count_dict[line] = count
sorted_count_dict = sorted (count_dict.iteritems(), key = operator.itemgetter( 1 ), reverse = True )
# for item in sorted_count_dict:
# print "%s,%d" % (item[0], item[1])
# print sorted_count_dict
fenzu = pd.DataFrame(sorted_count_dict).set_index([ 0 ])
#print fenzu
#分别从第一列和第二列取前19个数据放到x y中
x = list (fenzu.index[: 19 ])
y = list (fenzu.values[: 19 ])
print x
print y
#将x对应数值,不然画图报错
s = pd.Series( range ( 1 , len (x) + 1 ), index = x)
#设置画图属性
plt.figure(figsize = ( 12 , 6 ),dpi = 80 )
plt.legend(loc = 'best' )
# plt.plot(fenzu,color='red')
plt.bar(s,y,alpha = . 5 , color = 'r' ,width = 0.8 )
plt.title( 'The one red and one blue ball number' )
plt.xlabel( 'one red and one blue number' )
plt.ylabel( 'times' )
#可以在图中放置标签字符
# for i in range(0,19):
# plt.text(int(i+1.4),25,x[i],color='b',size=10)
# plt.text(1.4,20,x[0],color='g',ha='center')
#将['1,12', '26,9', '5,13']这样的字符放到图中
plt.xticks(s,x, rotation = 10 ,size = 10 ,ha = 'left' )
plt.show()
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结果如下:
可以看出红球1和蓝球12出现过的次数最多,其次是红球26和蓝球9
参考:
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import matplotlib.pyplot as plt
import numpy as np
plt.rc( 'font' , family = 'SimHei' , size = 13 )
num = np.array([ 13325 , 9403 , 9227 , 8651 ])
ratio = np.array([ 0.75 , 0.76 , 0.72 , 0.75 ])
men = num * ratio
women = num * ( 1 - ratio)
x = [ '聊天' , '支付' , '团购\n优惠券' , '在线视频' ]
width = 0.5
idx = np.arange( len (x))
plt.bar(idx, men, width, color = 'red' , label = '男性用户' )
plt.bar(idx, women, width, bottom = men, color = 'yellow' , label = '女性用户' )
plt.xlabel( '应用类别' )
plt.ylabel( '男女分布' )
plt.xticks(idx + width / 2 , x, rotation = 40 )
plt.legend()
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希望本文所述对大家Python程序设计有所帮助。
原文链接:http://blog.csdn.net/levy_cui/article/details/51446476