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Is it possible to put numbers on top of a matplot histogram?

import matplotlib.pyplot as plt
import numpy as np

randomnums = np.random.normal(loc=9,scale=6, size=400).astype(int)+15

Output:

array([25, 22, 19, 26, 24,  9, 19, 32, 30, 25, 29, 17, 21, 14, 17, 27, 27,
       28, 17, 17, 20, 21, 16, 28, 20, 24, 15, 20, 20, 13, 33, 21, 30, 27,
        8, 22, 24, 25, 23, 13, 24, 20, 16, 32, 15, 26, 34, 16, 21, 21, 28,
       22, 23, 18, 20, 22, 23, 22, 23, 26, 22, 25, 19, 29, 14, 27, 21, 23,
       24, 19, 25, 15, 22, 23, 19, 19, 23, 21, 22, 17, 25, 15, 24, 25, 23 ...
h = sorted(randomnums)
plt.hist(h,density=False)
plt.show()

Output:

Histogram

From my research I found only how to plot numbers on top of a bar chart, but what I want is to plot on top of a histogram chart. Is it possible?

like image 804
João Vitor Gomes Avatar asked Jan 10 '20 15:01

João Vitor Gomes


Video Answer


1 Answers

An adapted version of the answer I linked in the comments of the question. Thanks a lot for the suggestions in the comments below this post!

import matplotlib.pyplot as plt
import numpy as np

h = np.random.normal(loc=9,scale=6, size=400).astype(int)+15

fig, ax = plt.subplots(figsize=(16, 10))
ax.hist(h, density=False)

for rect in ax.patches:
    height = rect.get_height()
    ax.annotate(f'{int(height)}', xy=(rect.get_x()+rect.get_width()/2, height), 
                xytext=(0, 5), textcoords='offset points', ha='center', va='bottom') 

...gives e.g. enter image description here

See also: matplotlib.axes.Axes.annotate.

like image 188
FObersteiner Avatar answered Oct 25 '22 07:10

FObersteiner