How do I use mplcursors in my Matplotlib plots?

How do I use mplcursors in my Matplotlib plots?

You can use mplcursors to make your Matplotlib plots interactive. First, install it using pip: pip install mplcursors. Then, you can use it to annotate points in your plot.

Can you show me a simple example?

Sure! Here's a basic example:

import matplotlib.pyplot as plt
import mplcursors

x = [1, 2, 3, 4]
y = [10, 20, 25, 30]

plt.scatter(x, y)
mplcursors.cursor()
plt.show()

This will allow you to click on the points to see their coordinates.

What if I want to customize the annotations?

You can customize the annotations by using the mplcursors.cursor() function with parameters. For example:

mplcursors.cursor(hover=True)

This will show annotations when you hover over the points instead of clicking.

Can I change the appearance of the annotations?

Yes, you can change the appearance by modifying the annotation_kwargs parameter. For example:

mplcursors.cursor(annotation_kwargs={'bbox': {'facecolor': 'white', 'alpha': 0.5}})

This will change the background color and transparency of the annotations.