python简单画图示例

1.使用python中matplotlib模块简单的画图脚本示例。

#!/usr/bin/env python
# -*- coding: UTF-8 -*-

import matplotlib.pyplot as plt
import pandas as pd
from pandas import DataFrame

data1 = pd.read_csv("/test/king.xlsx", sep="\t")
#print(data1)
#print(data1['MaT=-1229'])
#print(data1['Time'])
#plt.figure(figsize=(10,5)) #设置图表大小，长10，宽5

plt.plot(data1['Time'], data1['MaT=-1229'], label='MaT=-1229') #画MaT=-1229的线条
plt.plot(data1['Time'], data1['MaT=-1232'], label='MaT=-1232') #画MaT=-1232的线条
plt.plot(data1['Time'], data1['MaT=-1236'], label='MaT=-1236') #画MaT=-1236的线条
plt.plot(data1['Time'], data1['MaT=-1239'], label='MaT=-1239') #画MaT=-1239的线条

plt.xlabel('time (s)',fontname='Times New Roman',fontsize=14)
plt.ylabel('velocity (m/s)',fontname='Times New Roman',fontsize=14)
plt.legend(loc=(0.5,0.5),ncol=1,fontsize=14)
#plt.show()
plt.savefig('/test/plot.png')

2.结果图如下所示：