How to specify different colors for different bars in a Python matplotlib histogram?

To specify different colors for different bars in a matplotlib histogram, we can take the following steps −

Steps

Set the figure size and adjust the padding between and around the subplots.
Create a figure and a set of subplots.
Plot a histogram with random data with 100 sample data.
Iterate in the range of number of bins and set random facecolor for each bar.
To display the figure, use show() method.

Example

import numpy as np
import matplotlib.pyplot as plt
import random
import string

# Set the figure size
plt.rcParams["figure.figsize"] = [7.50, 3.50]
plt.rcParams["figure.autolayout"] = True

# Figure and set of subplots
fig, ax = plt.subplots()

# Random data
data = np.random.rand(100)

# Plot a histogram with random data
N, bins, patches = ax.hist(data, edgecolor='black', linewidth=1)

# Random facecolor for each bar
for i in range(len(N)):
   patches[i].set_facecolor("#" + ''.join(random.choices("ABCDEF" + string.digits, k=6)))

# Display the plot
plt.show()

Output

It will produce the following output −

Rishikesh Kumar Rishi

Updated on 01-Feb-2022 11:44:04

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