对python pandas 画移动平均线的方法详解

date,jz0,jz1,jz2,jz3,jz4,jz5
2012-12-28,0.9326,0.8835,1.0289,1.0027,1.1067,1.0023
2012-12-31,0.9435,0.8945,1.0435,1.0031,1.1229,1.0027
2013-01-04,0.9403,0.8898,1.0385,1.0032,1.1183,1.0030
... ...

# -*- coding: utf-8 -*-
import os, sys
if len(sys.argv) ==2:
 i = sys.argv[1]
else:
 print \'usage: pd_roll_mean1.py i \'
 sys.exit(1)
 
import pandas as pd
# data  第6章 数据加载 读写文本格式的数据 第167页
df = pd.read_csv(\'/python/66001_.txt\', parse_dates=True, index_col=0 )
 
df.head() # 预览前5行数据
df.describe() # 数据基本统计量
 
import matplotlib.pyplot as plt
# 加这个两句 可以显示中文
plt.rcParams[\'font.sans-serif\'] = [u\'SimHei\']
plt.rcParams[\'axes.unicode_minus\'] = False
 
jz = \'jz\'+str(i)
df[jz].plot(figsize=(12,6), grid=True, legend=jz, label=\'66001\'+str(i)) 
# 画30日移动平均线 
pd.rolling_mean(df[jz], 30).plot(grid=True)
plt.show()