Python Jupyter Notebook: Put two histogram subplots side by side in one figure

Question

I am using Python (3.4) Jupyter Notebook. I have the following two histograms in two separated cells, each has their own figure:

bins = np.linspace(0, 1, 40)
plt.hist(list1, bins, alpha = 0.5, color = 'r')

and

bins = np.linspace(0, 1, 40)
plt.hist(list2, bins, alpha = 0.5, color = 'g')

Is it possible to put the above two histograms as two subplots side by side in one figure?

Answer 1

Yes this is possible. See the following code.

%matplotlib inline
import matplotlib.pyplot as plt
import numpy as np

list1 = np.random.rand(10)*2.1
list2 = np.random.rand(10)*3.
bins = np.linspace(0, 1, 3)

fig, ax = plt.subplots(1,2)
ax[0].hist(list1, bins, alpha = 0.5, color = 'r')
ax[1].hist(list2, bins, alpha = 0.5, color = 'g')
plt.show()

Answer 2

You can use matplotlib.pyplot.subplot for that:

import matplotlib.pyplot as plt
import numpy as np

list1 = np.random.rand(10)*2.1
list2 = np.random.rand(10)*3.0

plt.subplot(1, 2, 1)  # 1 line, 2 rows, index nr 1 (first position in the subplot)
plt.hist(list1)
plt.subplot(1, 2, 2)  # 1 line, 2 rows, index nr 2 (second position in the subplot)
plt.hist(list2)
plt.show()