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与此处解释和显示的示例相比，我试图获得非常相似的输出：https ://matplotlib.org/gallery/pie_and_polar_charts/bar_of_pie.html?highlight=bar%20pie

到目前为止，一切都很好。我什至设法获得了第二个条形图，但显然用于格式化第二个图的命令被忽略了。下面显示的代码给出了以下输出：

Python 输出

import matplotlib.pyplot as plt
from matplotlib.patches import ConnectionPatch
import numpy as np
import math


fig = plt.figure(figsize=(24,8))
ax1 = fig.add_subplot(131)
ax2 = fig.add_subplot(132)
ax3 = fig.add_subplot(133)


#pie chart
labels = ['Completed', 'Not completed']
ratios = [27.09, 72.91]
startangle = -45
explode = [0.1, 0]  # only "explode" the 2nd slice (i.e. 'Hogs')
ax1.pie(ratios, autopct='%1.1f%%', explode=explode, labels=labels, startangle=startangle)
ax1.axis('equal')  # Equal aspect ratio ensures that pie is drawn as a circle.


#bar chart #1
xpos = 0
bottom = 0
ratio_boys = [45.0, 55.0]
width = 0.1
colors = ['red', 'grey']

for j in range(len(ratio_boys)):
    height = ratio_boys[j]
    ax2.bar(xpos, height, width, bottom=bottom, color=colors[j])
    ypos = bottom + ax2.patches[j].get_height()/2
    bottom += height
    ax2.text(xpos,ypos, "%1.1f%%" %
        (ax2.patches[j].get_height()), ha='center')    

plt.title('Boys')
ax2.axis('off')
plt.xlim(-2.5*width, 2.5*width)


#bar chart #2
xpos = 0
bottom = 0
ratio_girls = [8.6, 91.4]
width = 0.1
colors = ['red', 'grey']

for j in range(len(ratio_girls)):
    height = ratio_girls[j]
    ax3.bar(xpos, height, width, bottom=bottom, color=colors[j])
    ypos = bottom + ax3.patches[j].get_height()/2
    bottom += height
    ax3.text(xpos,ypos, "%1.1f%%" %
        (ax3.patches[j].get_height()), ha='center')    

plt.title('Girls', fontsize=14, fontweight='bold')
ax3.axis('off')
plt.xlim(-2.5*width, 2.5*width)

所需的输出应该看起来略有不同。像这样：

期望的输出

我必须改变什么？左上边框的这个 (-0.25, 0.25) 是什么意思？这是从哪里来的？

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