python matplot.hist - 删除条形图之间的间隙

Question

我希望创建一个条形之间没有间隙的直方图。尝试添加参数 bin 或 range 但没有成功。

import numpy as np
from matplotlib import pyplot as plt

population = 100
possible_answers = 4
scores = np.random.choice(range(possible_answers),population)
plt.hist(scores)
plt.show()

Answer 1

您需要使用bins参数来调整使用哪些容器。

import numpy as np
from matplotlib import pyplot as plt

population = 100
possible_answers = 4
scores = np.random.choice(range(possible_answers),population)
plt.hist(scores, bins=range(possible_answers+1), ec="k")

plt.show()

或者，如果您想移动垃圾箱

plt.hist(scores, bins=np.arange(possible_answers+1)-0.5, ec="k")