Скачать или смотреть how to plot multiple dataframes in subplots

Get Free GPT4.1 from https://codegive.com/ad1f6af
Okay, let's dive into how to plot multiple DataFrames in subplots using Python's `matplotlib` library. This is a common task when you want to compare different datasets or visualize different aspects of the same data side-by-side. We'll cover the basics, customizations, and some best practices.

*1. Prerequisites*

First, make sure you have the necessary libraries installed:



*pandas:* For creating and manipulating DataFrames.
*matplotlib:* The core plotting library.
*numpy:* For numerical operations (often used in DataFrame generation).

*2. Basic Concept: `plt.subplots()`*

The foundation of creating subplots is the `matplotlib.pyplot.subplots()` function. It returns two main objects:

`fig`: The figure object. Think of this as the overall canvas that holds all your subplots.
`axes`: An axes object (or an array of axes objects). Each axes object represents a single subplot where you'll actually draw your plots.

*3. Simple Example: Two Subplots (Side-by-Side)*



*Explanation:*

1. *Import Libraries:* We import `pandas`, `matplotlib.pyplot` (as `plt`), and `numpy`.
2. *Create DataFrames:* We create two sample DataFrames, `df1` and `df2`, using `pandas`. `np.random.rand(10)` generates 10 random numbers between 0 and 1 for each column.
3. *`plt.subplots(1, 2, figsize=(10, 5))`:*
`1, 2`: Specifies that we want 1 row and 2 columns of subplots.
`figsize=(10, 5)`: Sets the width and height of the overall figure in inches. Adjust this to suit your needs. A larger figure size generally improves readability, especially with multiple subplots.
4. *`df1.plot(ax=axes[0], title='DataFrame 1')`:*
`ax=axes[0]`: This is the key part. It tells `pandas` to plot the DataFrame on the first subplot, which is referenced as `axes[0]` (remember, `axes` is an array).
`title='DataFrame 1'`: Sets the title for the first subplot.
5. **`axes[0].set_xlabel('Index')` and `axes[0].set_ylabel('Va ...

#numpy #numpy #numpy