Matplotlib Histograms 📶

Frequency Distributions

A histogram shows the frequency distribution of a dataset. It groups data into "bins" and counts how many values fall into each bin.

✨ Creating a Histogram

Use the hist() function. We'll generate random data using NumPy for this example.

python

import matplotlib.pyplot as plt
import numpy as np

# Generate 250 random values around 170 with std dev 10
x = np.random.normal(170, 10, 250)

plt.hist(x)
plt.show()

💡 Bins

You can control the number of intervals using the bins parameter. More bins = more detail.

python

plt.hist(x, bins=20)