Python中matplotlib库的用法介绍

$ pip install matplotlib

import matplotlib.pyplot as plt

x_month = [3,4,5,6,7,8,9]
y_temperature = [18,24,27,30,35,37,31]
plt.plot(x_month,y_temperature)
plt.show()
# plt.savefig('xxx.png') # 保存图标函数

import matplotlib.pyplot as plt

x_month = [1,2,3,4,5,6,7,8]
y_temperature = [11,22,23,43,20,23,42,42]
plt.plot(x_month,y_temperature,linewidth=5) # linewidth定义折线宽度
plt.title("This is Title")  # 标题
plt.xlabel("month",fontsize=14) # x轴
plt.ylabel("temperature",fontsize=14) # y轴
plt.tick_params(axis='both',labelsize=14) # 影响xy刻度的函数
plt.show() # 展示
# plt.savefig('xxx.png') # 保存图标函数

import matplotlib.pyplot as plt

plt.scatter(1,8,s=50,c='red') 
plt.show()

import matplotlib.pyplot as plt
x_values = list(range(1001))
y_values = [x**2 for x in x_values]
plt.scatter(x_values,y_values,s=40,edgecolors='none') # edgecolors参数用于去除外轮廓
plt.show()

import matplotlib.pyplot as plt


x_values = list(range(1001))
y_values = [x**2 for x in x_values]
plt.scatter(x_values,y_values,s=40,edgecolors='none',c=y_values,cmap=plt.cm.Blues)