Example 1: matplitlib how to draw a histogram
import matplotlib.pyplot as plt
x = [1,1,2,3,3,5,7,8,9,10,
10,11,11,13,13,15,16,17,18,18,
18,19,20,21,21,23,24,24,25,25,
25,25,26,26,26,27,27,27,27,27,
29,30,30,31,33,34,34,34,35,36,
36,37,37,38,38,39,40,41,41,42,
43,44,45,45,46,47,48,48,49,50,
51,52,53,54,55,55,56,57,58,60,
61,63,64,65,66,68,70,71,72,74,
75,77,81,83,84,87,89,90,90,91
]
plt.hist(x, bins=10)
plt.show()
Example 2: python - change the bin size of an histogram+
x = np.random.randn(1000)
plt.hist(x, bins=20)
plt.hist(x, bins=range(-4, 5))