Python绘制堆叠柱状图的实例

from matplotlib import pyplot as plt
import pandas as pd
import xlrd
import numpy as np
 
data = xlrd.open_workbook('ccc.xlsx')  #打开数据
table = data.sheet_by_index(0)     #获取sheet1的数据
nrows = table.nrows           #获取sheet1中的行
plot_list = ['plot1']
plot1_ra_list = [[0] for i in range(17)]#构建一个17X1的列表
i = 0
for row in range(1,nrows):       #循环读取表内数据
  if table.cell(row,0).value == 2015.0 and table.cell(row,1).value == 'plot1':
    print(table.cell(row, 3).value) #第三列是各个元素所占的比例
    print(i)
    plot1_ra_list[i][0]=(float(table.cell(row, 3).value))
    i+=1
#颜色列表
color = ['y','r','snow','b','k','g','orange','c','bisque','brown','lime','aqua','coral','darkcyan','gold','teal','pink',]
plt.figure(figsize=(8,6))
for i in range(17):
  plt.bar(range(len(plot1_ra_list[i])), plot1_ra_list[i],bottom=np.sum(plot1_ra_list[:i],axis = 0),label=str(i+1),tick_label = plot_list,fc = color[i])
plt.legend()
plt.show()