绘制的43个不同类别

Question

频率A像样方式我创建从每个类的frequeny以下直方图在训练集

每个类的标签太长且类似于

Speed limit (20km/h) 

我可以将每个标签放在酒吧本身吗？

Answer 1

也许这样？

import numpy as np 
import matplotlib.pyplot as plt 

N=5 
xlabel = ["Speed limit ("+str(i)+"km/h)" for i in range(0,N)] 
xs = np.arange(0,7,1.5) 
ys = [8,6,10,7,9] 
width = 0.3*np.ones(N) 

fig, ax = plt.subplots() 
bars = ax.bar(xs, ys, width, color='k',alpha=0.3) 
plt.xticks(xs, xlabel,rotation=270) 

for i,bar in enumerate(bars): 
    height = bar.get_height() 
    ax.text(bar.get_x() + bar.get_width()/2., 0.1*height, 
       '%s' % xlabel[i],rotation=90,ha='center', va='bottom') 

plt.show() 

把它改成单杠情节：

import numpy as np 
import matplotlib.pyplot as plt 

N = 5 
xlabel = ["Speed limit ("+str(i)+"km/h)" for i in range(0,5)] 
xs = np.arange(0,5)/2 
ys = [8,6,10,7,9] 
width = 0.3*np.ones(N) 

fig, ax = plt.subplots() 
bars = ax.barh(xs, ys, width, color='k',alpha=0.3) 
plt.xticks([]) 

for i,bar in enumerate(bars): 
    height = bar.get_height() 
    ax.text(bar.get_x()+3, bar.get_y()+bar.get_height()/3, 
       '%s' % xlabel[i],rotation=0,ha='center', va='bottom') 
plt.tight_layout() 
plt.show()