python绘图函数

1.plot绘制线型图

import matplotlib.pyplot as plt
import numpy as np
import pandas as pd
plt.rcParams['font.sans-serif'] = ['SimHei']
plt.rcParams['axes.unicode_minus'] = False
import matplotlib.pyplot as plt
import numpy as np
x = np.linspace(0,2*np.pi,50) 
y = np.sin(x)
plt.title('3111')
plt.plot(x,y,'r+')
plt.show()

 2.pie函数绘制饼图

import matplotlib.pyplot as plt
labels = ['数学','专业课','英语','政治']
sizes = [40,40,10,10]
colors =['yellowgreen','gold','lightskyblue','lightcoral']
explode = (0.2,0.1,0,0)
plt.pie(sizes,explode=explode,labels=labels,colors=colors,autopct='%1.1f%%',shadow=True,startangle=90)
plt.axis('equal')
plt.title('3111')
plt.show()

 3.boxplot绘制箱型图

import numpy as np
import pandas as pd
from matplotlib import pyplot as plt
x = np.random.randn(1000)
D= pd.DataFrame([x,x+1]).T     
D.plot(kind='box')       
plt.title('3111')
plt.show()