PYTHON:饼图和折线图

Source

一、饼图

import matplotlib.pyplot as plt
labels = '1', '2', '3', '4'
sizes = 15,20, 45, 10   # 标签对应的份额数
colors = 'yellowgreen', 'gold', 'lightskyblue', 'lightcoral'
explode = 0, 0.1, 0, 0
plt.pie(sizes, explode = explode, labels = labels, colors = colors, autopct = '%1.1f%%', shadow = True, startangle = 50)
plt.axis('equal')

plt.savefig('路径')  #放在show之前,不然导出的图会是空白的
plt.show()

生成图:
饼图
二、折线图

import pandas as pd
from matplotlib import pyplot as plt
from pylab import mpl
mpl.rcParams['font.sans-serif'] = ['SimHei']  # 中文显示


def zxt_plot():
    x = pd.to_datetime(data['DATE'], format = '%Y-%m').tolist()  # 横坐标以时间为格式,如果直接使用array转化会导致时间转为数值
    y = np.array(data['VALUE']).tolist()
    plt.figure()
    plt.plot(x, y, linewidth = 3, color = 'blue', marker = 'o',markerfacecolor = 'red', markersize = 5, label = u'xxx') # 画图
    plt.legend()  # 显示线的标签
    plt.xlabel('月份') # x轴标签
    plt.ylabel('增速(%)')  # y轴标签
    plt.title('固定资产投资额增速')  # 标题
    
    plt.savefig('路径') #保存
    plt.show()
    
zxt_plot()