[Python Study Notes]堆叠直方图绘制

‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘
>>文件: 堆叠直方图.py
>>作者: liu yang
>>邮箱: [email protected]
>>博客: www.cnblogs.com/liu66blog

‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘

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

import matplotlib.pyplot as plt
import matplotlib
# 定义要使用的字体,防止出现中文乱码
font=matplotlib.font_manager.FontProperties(fname=r"C:\Windows\Fonts\Deng.ttf")

# 双层直方图,上下结构  适用于一个柱状图全部高于另一组
def barsplot():
    # 先生成一个画布
    fig=plt.figure()
    # 生成数据
    x1=[x for x in range(1,9)]
    y1=[n*2 for n in range(1,9)]
    x2=[x for x in range(1,9)]
    y2=[x**2 for x in x2]
    # 开始画条形图2,先画数值大的,数值小的直接在原图覆盖
    l2=plt.bar(x2,y2,color=‘b‘,width=0.4)
    # 开始画条形图1
    l1=plt.bar(x1,y1,color=‘g‘,width=0.4)
    # 设置x标签
    plt.xlabel(u‘x轴‘,fontproperties=font)
    # 设置y轴标签
    plt.ylabel(‘y轴‘,fontproperties=font)
    # 设置标题
    plt.title(u‘堆叠柱状图‘,fontproperties=font)
    # 设置注解狂
    plt.legend(handles = [l1, l2,], labels = [‘去年‘, ‘今年‘], loc = ‘best‘,prop=font)
    # 把确切数字显示出来
    for x1,x2, y1, y2 in zip(x1,x2, y1, y2):
        plt.text(x1 , y1, ‘%.0f‘ % y1, ha=‘center‘, va=‘bottom‘)
        plt.text(x2 , y2, ‘%.0f‘ % y2, ha=‘center‘, va=‘bottom‘)
    # 显示
    plt.show()

# 如果最为主模块运行
if __name__ == ‘__main__‘:
    # 实例化
    ba=barsplot()

原文地址:https://www.cnblogs.com/liu66blog/p/8486109.html

时间: 2024-11-11 08:30:19

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