48 lines
1.8 KiB
Python
48 lines
1.8 KiB
Python
import matplotlib.pyplot as plt
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import numpy as np
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plt.rcParams['font.sans-serif'] = 'SimHei'
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import matplotlib.pyplot as plt
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import numpy as np
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# 数据
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risk_levels = ["高风险", "次高风险", "次低风险", "低风险"]
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material = [41.7, 34.0, 58.3, 36.8]
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equipment = [16.7, 18.0, 8.3, 10.5]
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design = [37.5, 38.0, 33.3, 31.6]
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manufacturing = [4.2, 10.0, 0.0, 21.1]
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# 设置柱状图位置
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x = np.arange(len(risk_levels))
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width = 0.6
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# 绘制堆叠柱状图
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fig, ax = plt.subplots(figsize=(10,6))
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bars_material = ax.bar(x, material, width, label="材料", color="#1f77b4")
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bars_equipment = ax.bar(x, equipment, width, bottom=material, label="设备", color="#ff7f0e")
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bars_design = ax.bar(x, design, width, bottom=np.array(material)+np.array(equipment), label="设计", color="#2ca02c")
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bars_manufacturing = ax.bar(x, manufacturing, width, bottom=np.array(material)+np.array(equipment)+np.array(design), label="制造封测", color="#d62728")
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# 添加柱内比例标签
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for i in range(len(x)):
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# 材料
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ax.text(x[i], material[i]/2, f"{material[i]:.1f}%", ha='center', va='center', color='white', fontsize=10)
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# 设备
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ax.text(x[i], material[i]+equipment[i]/2, f"{equipment[i]:.1f}%", ha='center', va='center', color='white', fontsize=10)
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# 设计
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ax.text(x[i], material[i]+equipment[i]+design[i]/2, f"{design[i]:.1f}%", ha='center', va='center', color='white', fontsize=10)
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# 制造封测
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if manufacturing[i] > 0:
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ax.text(x[i], material[i]+equipment[i]+design[i]+manufacturing[i]/2, f"{manufacturing[i]:.1f}%", ha='center', va='center', color='white', fontsize=10)
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# 图表美化
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ax.set_xticks(x)
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ax.set_xticklabels(risk_levels)
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ax.set_ylabel("占比 (%)")
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ax.set_title("各风险等级企业结构占比（堆叠柱状图）")
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ax.legend()
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ax.set_ylim(0, 120)
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ax.grid(axis='y', linestyle='--', alpha=0.7)
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plt.tight_layout()
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plt.show() |