python pyplot绘制并行柱状图，x轴数值显示在两个柱状图的中心

  

   

    

     

    
    

     

      import matplotlib.pyplot as plt
     
    
   

    

     

    
    

     

      import matplotlib as mpl
     
    
   

    

     

    
    

     

      import numpy as np
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      mpl.rcParams["font.sans-serif"] = ["SimHei"]
     
    
   

    

     

    
    

     

      mpl.rcParams["axes.unicode_minus"] = False
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      x = np.arange(5)
     
    
   

    

     

    
    

     

      y = [60, 10, 40, 50, 10]
     
    
   

    

     

    
    

     

      y1 = [20, 60, 30, 80, 50]
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      bar_width = 0.35
     
    
   

    

     

    
    

     

      tick_label = ["A", "B", "C", "D", "E"]
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      plt.bar(x, y, bar_width, align="center", color="red", label="项目A", alpha=0.5)
     
    
   

    

     

    
    

     

      plt.bar(x+bar_width, y1, bar_width, color="blue", align="center", label="项目B", alpha=0.5)
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      plt.xlabel("种类")
     
    
   

    

     

    
    

     

      plt.ylabel("数量")
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      plt.xticks(x+bar_width/2, tick_label)
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      plt.legend()
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      plt.show()
     
    
  
 

文章来源: wanghao.blog.csdn.net，作者：AI浩，版权归原作者所有，如需转载，请联系作者。

原文链接：wanghao.blog.csdn.net/article/details/114057980